Factorials Explained!

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  • Опубліковано 31 січ 2025

КОМЕНТАРІ • 737

  • @TheOrganicChemistryTutor
    @TheOrganicChemistryTutor  Рік тому +31

    Precalculus Video Lessons: www.video-tutor.net/precalculus.html

    • @Jhomerhere
      @Jhomerhere Рік тому +4

      Tysm for all of your teaching, we appreciate it so much :)

  • @shadowscythes
    @shadowscythes Рік тому +192

    Came here for a basic rundown when factorials were suddenly introduced in a math lesson and I'd never heard of them before, thanks for such a simple and straightforward explanation!

    • @yungabdul1871
      @yungabdul1871 9 місяців тому +9

      Series convergence in calculus 2?

    • @itspen1594
      @itspen1594 9 місяців тому

      @@yungabdul1871YEP LITRRALLLY MERN

    • @6torthor
      @6torthor 6 місяців тому +3

      @@yungabdul1871 YUP, I mean obvs knew a bit about them but when we actually started doing some examples my mind could not comprehend where the numbers where the patterns were coming from that everyone somehow knew T-T

  • @wiktorman
    @wiktorman 4 роки тому +383

    I'm not in the school anymore but thanks to your videos I'm looking forward to learning maths just for fun. Everything you explain is logical and clear. You are the best teacher on the internet, thank you!

    • @dhyaneeshanand5648
      @dhyaneeshanand5648 2 роки тому +2

      @@bryansantony4028 you'll understand when you're older

    • @ihavenoidea00-c4u
      @ihavenoidea00-c4u 2 роки тому +1

      i think so

    • @ErnieF10
      @ErnieF10 2 роки тому +7

      @@dhyaneeshanand5648 much better when learning for fun haha

    • @naahbroskiii
      @naahbroskiii 7 місяців тому +1

      bro just play csgo or any playstation games why are u spending ur time here

    • @Gamerlol-333
      @Gamerlol-333 6 місяців тому +1

      @@naahbroskiii let him do what he wants, why is his passion your business?

  • @littlemstc
    @littlemstc 6 років тому +323

    literally, I'm in calc two and my professor just included factorials in a problem one day as if all of knew or seen an exclamation point in a math problem before. but it's simple all he had to do was say it. so thank you TOCT

    • @MrMrannoying
      @MrMrannoying 6 років тому +10

      That’s Odd, i mean I know I definitely was taught what factorial meant before and im in calc 2 as well. No one had a problem with it that spoke up. I guess it just wasnt in your local curriculum?

    • @Mollythom94
      @Mollythom94 5 років тому +15

      Same!! I just had to look this up because they were talking about it in stats as if I was already supposed to know.

    • @Cflenoury
      @Cflenoury 5 років тому +14

      littlemstc IM SAYIN. This is me rn. My professor just plopped factorials in front of us like we’re supposed to know wth to do with them 😂

    • @themagesticunicorn7284
      @themagesticunicorn7284 3 роки тому +13

      How are WE ALL LIVING THE SAME LIFE ??????????????????

    • @kuethkhor6738
      @kuethkhor6738 3 роки тому

      Yeah me too but with stats

  • @monkimikiii
    @monkimikiii Рік тому +24

    English is not my native language, but your explanation is more effective than the explanations of teachers in my native language. thank you so much

  • @majdalin1265
    @majdalin1265 2 роки тому +30

    i don't know why school teachers doesn't explain like you ,Math would have been easier if they were like you thank you so much you made my day

    • @postholedigger8726
      @postholedigger8726 Рік тому +6

      majdalin,
      The reason school teachers don't explain like this guy is, the way math was taught when they were in school required memorization instead of understanding. The "solutions" weren't properly explained, and critical steps were left out. The students who received high grades were the ones who memorized the incomplete solutions that were written on the board.

    • @majdalin1265
      @majdalin1265 Рік тому +1

      @@postholedigger8726 totally agree with you

  • @hydrogenandhelium
    @hydrogenandhelium 4 роки тому +1808

    Life was so much easier when only numbers were involved

  • @scottsommers9162
    @scottsommers9162 5 років тому +84

    dude I skip classes to bc watching these is so much more efficient. you are a god damn hero.

    • @crusader7964
      @crusader7964 5 років тому +6

      dude I don’t think that’s same tho

    • @optimicist7774
      @optimicist7774 4 роки тому +23

      You shouldn't skip grammar courses though

    • @mrjaquavis6444
      @mrjaquavis6444 4 роки тому +2

      Skip classes because of one subject? lol

    • @VergilPeterson
      @VergilPeterson 3 роки тому +2

      When you learn more from these videos instead of your math teacher, it’s definitely worth skipping class.

    • @jax6648
      @jax6648 3 роки тому

      @@optimicist7774 grammarly and duo lingo

  • @rhythm3869
    @rhythm3869 6 років тому +145

    I literally watched the ad because i like this dude

  • @cyanide6954
    @cyanide6954 4 роки тому +117

    Im in year 7 and i understood this man can you take over our educational system

    • @aliazman6053
      @aliazman6053 4 роки тому +2

      I am 5 years!

    • @tfeak2101
      @tfeak2101 3 роки тому +4

      @@springofnae i am two!

    • @Fms5673
      @Fms5673 3 роки тому

      I’m year 7 too!

    • @hey9530
      @hey9530 3 роки тому +3

      I'm -1.

    • @YISALW.
      @YISALW. 3 роки тому

      I’m doing this in year 6 tryna understand combinations

  • @graces2477
    @graces2477 3 роки тому +79

    Why do professors have to make everything so complicated when it's this easy to explain? NOT saying your work is light, because you're literally carrying thousands of HS and college students through their courses but like... I can't even glean any of this from the lectures my school gives, and we all know how much uni costs. Thank you so much for saving my grades and helping me understand the math!

    • @kittycat3981
      @kittycat3981 Рік тому

      Aisa professor I want to say that I don't know

    • @agentsteve8263
      @agentsteve8263 Рік тому +6

      They are not teachers but merely experts in their fields, they understand it their way but that doesn't mean they are good at conveying that information to others, espically when they might be managed multiple subjects and as a result don't have enough time to go into detail as much as they need to.
      Universities could easily hire actual teachers to learn from the professors to translate the information into a way that is digestible and to also reduce the workload for the staff managing subjectbut unforntunaly that would make it accessible to more people, and devaluing the degrees overall(to the university), resulting in the loss of profit for them in the short term(but being valuable for the longterm)
      Very few countries have non-privitised eduation system that values making the univeristiy enough money than for effective educuation

    • @theryancola
      @theryancola 3 місяці тому

      It's called fancy math

  • @mynamesimm
    @mynamesimm 12 днів тому

    you explained so much more than I ever expected to understand. I seriously want you to know that your videos have carried me through my first 2 years of college, and if it wasn't for you, I would've never gotten half of the math I've been taking so far. Thank you!

  • @fisniksulejmani3873
    @fisniksulejmani3873 4 роки тому +4

    thank you bro you have saved my day!i have watched almost 10 videos that means that i didnt understand my lessons in school thats bcoz of my teacher but you saved my day,you saved 9999 mil days,so god bless this person plz...

  • @niclindseywilson1268
    @niclindseywilson1268 3 роки тому +11

    Wow! I was seriously struggling with a specific factorial simplification problem and it turns out it was one of the very ones that you solved in this video. Glory to God! Thank you so much my friend. You're videos help me so much. Take Care!

    • @asliceofcheese9989
      @asliceofcheese9989 3 роки тому +3

      same, he helped me gone thru 2 exams in a row and i passed both

    • @BaitMaster22
      @BaitMaster22 Рік тому

      May i ask?, at what grade will operating factorials be introduced? i just want to get ready for this

    • @xxgirly3375
      @xxgirly3375 Рік тому

      @@BaitMaster22 11th grade or 5th year or whatever it is where you are 😂

  • @hebijs
    @hebijs 4 роки тому +82

    I've never heard of factorials before and now I understand it. You're good at what you're doing 👍

    • @h0w_6o_1_type
      @h0w_6o_1_type 2 роки тому +2

      Yeah, his videos taught me some of the things of calc 2. he's really good at this stuff.

    • @shauryasuvan2032
      @shauryasuvan2032 Рік тому

      Lie

    • @HeyItsQuantum
      @HeyItsQuantum Рік тому

      You made this channel 9 years ago how aren't you old enough to know what are factorials

    • @hebijs
      @hebijs Рік тому

      @@HeyItsQuantum We never learned them in school, because it's not necessary

  • @srujanbali1005
    @srujanbali1005 Рік тому +2

    This guy has possibly made video of every topic that a high schooler needs. For each topic this guy has a video on it. Thanks for the amazing video.

  • @liliacfury
    @liliacfury 6 років тому +119

    Just in time! Cruddy teacher = Cruddy understanding. Good teacher = Good understanding. You’re the good teacher.
    2 years later and y’all are still complaining. I fixed it, happy?

  • @hayden3774
    @hayden3774 4 роки тому +387

    My teachers explanation of factorials was: Here, look.. 5! is 5 * 4 * 3 * 2 * 1. Get it? Sweet! Now lets do a series .. (2n+5)! / n(4n-1)!
    In other words, thank you math jesus

    • @rhettreem
      @rhettreem 4 роки тому +21

      HONESTLY

    • @jetjet268
      @jetjet268 4 роки тому +13

      thats a bit hard on y'all😅

    • @xvinayx2103
      @xvinayx2103 4 роки тому +14

      Yeah even my teacher did the same way. So I came here.

    • @slickbonz
      @slickbonz 4 роки тому +3

      Mine too

    • @naomim7125
      @naomim7125 4 роки тому +3

      Did this man die for you? Cause Jesus did.

  • @hamzahimran3447
    @hamzahimran3447 4 роки тому +62

    its so interesting how university math seems so complicated and difficult yet when broken down seems simple

    • @snoqze3426
      @snoqze3426 3 роки тому +23

      this is university level? i was in year 10 when i did this

    • @cansenturhan4594
      @cansenturhan4594 3 роки тому +4

      @@snoqze3426 SAME İ WAS JUST SHOCKED WHİLE READİNG THAT

    • @aliasaf457
      @aliasaf457 3 роки тому

      Faktöriyel sorusunu biz Türkiye'de lise de görüyoruz. Meğer adamlar üniversite de en basit faktöriyel sorusunu çözüyorlar.
      0!=1
      1!=1
      2!=2
      3!=6
      4!=24
      5!=120
      6!=720
      Yani diyebiliriz ki 5! den itibaren sayının son basamağı her zaman 0 oluyor. Bu arada 16 yaşındayım. Demek ki Avrupa'da okusam şu an üniversiteye kesin gitmisimdir.

    • @cansenturhan4594
      @cansenturhan4594 3 роки тому

      @@aliasaf457 HARBİ

    • @aliasaf457
      @aliasaf457 3 роки тому

      @@cansenturhan4594 Harbiden wshkhjvjghcbn

  • @aaliamazharkhan1796
    @aaliamazharkhan1796 4 місяці тому

    Hello sir. I'm leaving this comment here hoping you read it one day. I just wanted to let you know how LIFECHANGING these short videos are, my school randomly signed me up for a math contest, and I have to look into such topics that I've never even heard of before, and you have helped me SO MUCH!

  • @charlßtonê-x2o
    @charlßtonê-x2o Місяць тому +1

    Best teacher ever...so much love from Kenya

  • @sebjay2810
    @sebjay2810 4 роки тому +2

    I know that this is an old video but you still help out people like me in math. Appreciated it man

  • @briannajackson4326
    @briannajackson4326 2 роки тому +1

    Thank you so much for this! This is the first video I clicked on. My professor just threw this same factorial problem in the online lecture. I had no clue how he got 24 until now. :)

  • @simonwax7575
    @simonwax7575 5 років тому +8

    I learnt something today. Thanks I’m coming back to maths after a 30 year break.

  • @chansaclive
    @chansaclive 4 роки тому +5

    Okey if there is any guy who has been helping me it's this guy... Am down for you 🙏❤️

  • @saidibrahim5931
    @saidibrahim5931 3 роки тому

    the best teacher ever, I have watched other videos they don't know what they are talking about

  • @oggierules3660
    @oggierules3660 2 роки тому

    Thank you, I'm studying Engineering and of course one of my modules is Maths and I'm brushing up on the basics and you are just such a God haha saving lives out here man honestly

  • @iri3ooo
    @iri3ooo 4 роки тому

    literally u have helped me out so much i all of math courses.... u are the literal greatest math teacher ever

  • @retormkd9660
    @retormkd9660 5 років тому +2

    thank you a lot you have earned 2 subscriptions you are saving me and my friend from failing classes

  • @helpontheway7856
    @helpontheway7856 6 років тому +28

    Thank you. Came looking for an explanation on simplifying (n+1)!/n! And I got just that.
    Much love

  • @Gonthor1000
    @Gonthor1000 5 років тому +3

    I've been reviewing _math_ topics from this awesome channel for probably 2 or 3 years.
    Just realized today it's actually _"Chemistry"_ Tutor!

  • @jobbydude
    @jobbydude 2 роки тому +1

    I had to watch this video because the book didn't explain how the example was solved. Good video. Simple and clear. uwu

  • @shahdmohamed5314
    @shahdmohamed5314 3 роки тому +4

    Your channel is amazing thank you
    جزاك الله خيرا

  • @jessemcauliffe362
    @jessemcauliffe362 6 років тому +3

    You're maths videos are the best on UA-cam. Makes everything so simple
    thanks alot.
    Liked+Subscribed

  • @DaKoolDud30
    @DaKoolDud30 3 дні тому

    bro actually teached us better than most proffesional teachers'

  • @omnithewolf3628
    @omnithewolf3628 7 років тому +675

    No one should do as many math videos as this channel has. I think TOCT (The Organic Chemistry Tutor) is a robot. That’s the only logical thing left. When the world ends he will continue going. One day somebody will find the lair he has and it’ll be a bunch of wires and a big robot brain that’ll be going over math lessons.

  • @sharonsandrababirye9290
    @sharonsandrababirye9290 2 роки тому

    Clearest explanation you'll ever come across

  • @thanglongnguyenvu3815
    @thanglongnguyenvu3815 5 років тому +4

    This is worth more of my time than on classes.

  • @TheRealityWarper08
    @TheRealityWarper08 10 місяців тому +1

    Thank you! I was able to follow along and actually learn everything being taught, which speaks volumes considering my ADHD!

  • @Darkassembley
    @Darkassembley 5 років тому +12

    Doing coding for a hobby, Factorials are super interesting.

  • @ess-kay4451
    @ess-kay4451 3 роки тому

    I wasnt here when we did this in online class. This saved my life thank you so much!!

  • @Safowan191
    @Safowan191 8 місяців тому

    Thanks, my teacher gave a basic explanation but they might have harder variations in the exam. This video is super concise and helpful 🙏🙏🙏🙏🙏🙏

  • @rhettreem
    @rhettreem 4 роки тому +3

    Even if I was watching this in HS, I love the fact that he still chose to have our backs in the same video when I would have to now confront factorials with series

  • @randysmith4964
    @randysmith4964 3 роки тому

    The class that I paid for is asking me to calculate factorials but failed miserably in explaining it as easy as you have. Thank you sir.

  • @dr.cornboy6577
    @dr.cornboy6577 4 роки тому +2

    Someone get this man a trophy

  • @camsygreoy
    @camsygreoy 2 місяці тому +1

    oh my God you have made it simpler,,,thank you ☺️☺️

  • @MonsieurButter
    @MonsieurButter 2 роки тому

    I'm in calc 2 and I've never learned factorials. I assumed it would be taught in a higher math class. Thank you so much

  • @unbeatable_unstoppable_me
    @unbeatable_unstoppable_me Рік тому

    That's great, I was finding a video on factorial operations, and I finally found it!

  • @ojasavsinghchauhan4375
    @ojasavsinghchauhan4375 6 років тому +42

    MAN YOU EXPLAIN VERY NICE.
    THANKS BUDDY.

  • @venkateswarluponnam7682
    @venkateswarluponnam7682 4 роки тому +3

    Ur explanation is very clear thank you sir

  • @janedoes5903
    @janedoes5903 4 роки тому

    Thank you. Haven't seen this in five years and it's been scaring me.

  • @chinanumberone7723
    @chinanumberone7723 5 років тому +1

    Thanks for the video, currently doing extension 1 maths and thinking of picking up extension 2 maths, and this helped me learn how to prove algebraically which i struggle with! Thanks so much, I'm going to watch more of your videos about probability.

  • @arifarman5144
    @arifarman5144 3 роки тому

    So helpful, thanks to that person who created this video

  • @cgplayz545
    @cgplayz545 3 роки тому

    Why do all calc professors skip explaining this!!! Thank you Organic Chemistry Tutor Ily

  • @espilceralos233
    @espilceralos233 Рік тому +1

    Makes my life easier🙏🙏

  • @tx9mdy653
    @tx9mdy653 6 років тому +2

    You're a pretty solid teacher my man, I understand what factorial
    Are now, never did before, never even needed to but I learned instantly

  • @lindbo4545
    @lindbo4545 5 років тому +31

    I don’t even have school rn but I’m very intrigued

  • @oliverluv23
    @oliverluv23 6 років тому

    Thank you , I like your voice , clear, I like your speed of talking, not too fast, not too slow

  • @dankoch5357
    @dankoch5357 3 роки тому

    this guy, got me through quantum mechanics and here we go again for thermal/statistical physics

  • @NgoziEwuzie-k3z
    @NgoziEwuzie-k3z Рік тому

    U are the best method teacher ever thanks alot bro❤

  • @75Tianah
    @75Tianah 3 роки тому

    Thank you my brother.
    May God richly bless you.
    Am learning alot from this video.
    Greeting from the South Pacific

  • @yummyspicyhut529
    @yummyspicyhut529 4 роки тому +1

    You are the best teachers . Keep it up good work

  • @WordplayAnimationSpot
    @WordplayAnimationSpot 4 роки тому +1

    02:31 ..... the way he explained it is awesome, like completely legit.

  • @ashnaakhanna7052
    @ashnaakhanna7052 22 дні тому

    Thanks you so much, I was studying for the aryabhatta and I had no clue clue what factorials are(we have not learnt them yet) and you saved me

  • @judy-9999
    @judy-9999 5 років тому

    How do we use “factorial” in a sentence? What is it used for & why didn’t we get to hear about this when I was in school 40yrs ago?
    THANK YOU for giving us this info in your calm clear voice! 👍🥰✅

    • @asliceofcheese9989
      @asliceofcheese9989 3 роки тому

      now i know what does the sentence "this is bullshit to the 10th factorial" mean

  • @mqkmail
    @mqkmail Рік тому +4

    Your tutorial videos are super helpful. They are the best I've seen and make challenging problems suddenly easy to understand. Thank you SO much!

  • @attackonbngtn
    @attackonbngtn 3 роки тому

    i am in the 5th grade and this really helped thx ur a math genius!!!!!

  • @pratyusha745
    @pratyusha745 2 роки тому +1

    Excellent explanation

  • @lakshmiphanikumar9413
    @lakshmiphanikumar9413 3 роки тому

    thanks a lot sir i was doing a data science course and had a problem in permutation and combinations and factorials
    ...... i watched ur videos and understood perfectly

  • @elgieschannel3556
    @elgieschannel3556 2 роки тому

    One of my favorites online educators. Thank you so much, you help me a lot.😘

  • @MShazarul
    @MShazarul 5 років тому +3

    Great review before my ratio test!

  • @JMRG2992
    @JMRG2992 3 роки тому

    You just saved my life. Thank you.

  • @obisiwinifred9292
    @obisiwinifred9292 3 роки тому

    I'm so happy with this channel, Maths made easy helping me study for my exam😊

  • @KidKlatt
    @KidKlatt 4 роки тому

    Literally, the second time you are saving my life, discrete math is lethal. Thank you for doing what my professor couldn't!

  • @gandolph999
    @gandolph999 2 роки тому +2

    Well explained and demonstrated.

  • @JesusMartinez-zu3xl
    @JesusMartinez-zu3xl 2 роки тому

    thank you so much! I haven'y seen a factorial until my cal 2 professor showed us a problem. Thank you!

  • @menulis7941
    @menulis7941 3 роки тому +1

    You guys got anything I should go over before starting calc 1 or ab

  • @sluggaisback
    @sluggaisback 4 роки тому +2

    Helped me tremendously, thanks for making it easier to understand and break down!!!!

  • @memesalldayjack3267
    @memesalldayjack3267 Рік тому

    that was so easy to understand!
    (that was so easy to understand) (that was so easy to understand -1)...
    i wish school would teach fast and easy like that

  • @xoxo_angieo
    @xoxo_angieo 4 роки тому +1

    My hero. THANK YOU FOR WHAT YOU DO!

  • @hellohi-mj8ho
    @hellohi-mj8ho Рік тому

    Literally just recursion from my cs class! Super cool

  • @gracewoodcox8208
    @gracewoodcox8208 3 роки тому

    You made it so easy to understand. Even a child could understand this!

  • @turaysamuelm.4445
    @turaysamuelm.4445 2 роки тому

    you're really versatile in all what you do

  • @TheRelentlessKnight
    @TheRelentlessKnight 7 років тому +261

    I swear this man is stalking me. He post inverse matrices while I'm learning about it in Linear algebra. He posts factorials when I'm reviewing the use of factorials in stats. wtf, why are you always here for me?

    • @helpontheway7856
      @helpontheway7856 6 років тому +14

      Haha I feel the same way!
      For me, he posts a video of topic on the day of my exam.(coincidentally of same topics)

    • @rulke4858
      @rulke4858 6 років тому +11

      I know, feeling the same - but this guy has helped me in my 1.5 years of uni so far!

    • @niklashinnenberg4682
      @niklashinnenberg4682 5 років тому +1

      Omg you're right

    • @drippybizzle4969
      @drippybizzle4969 5 років тому +1

      Are you in college?

    • @toitozky155
      @toitozky155 4 роки тому +2

      Bro i am in grade 10 and i just do that for fun and knowledge (he pops out in every topic i search)

  • @Rumble2211
    @Rumble2211 11 місяців тому

    This actually helped alot factorials are kinda easy now that youve explained it thanks bro

  • @donmarz7030
    @donmarz7030 4 роки тому

    Thank very much teacher. In return i will not skip your ads.

  • @sdflo6258
    @sdflo6258 Місяць тому +4

    10:56 bro did a moment of silence for those of us who are cooked for the test

  • @ender2215
    @ender2215 3 роки тому

    Thank you for this video! it seems like something they fail to teach in calculus and expect you to understand without much explanation.

  • @ncg8224
    @ncg8224 4 роки тому

    Best teacher ever, sir I wish I discovered you sooner

  • @pksstudypoint1752
    @pksstudypoint1752 4 роки тому +1

    Your explanation is superb. Great from INDIA.☺☺☺☺😊😊🙃🙃🙃🙃🌞🌞🌞👍👍👍👍👍🤞🤞🤞🤞

  • @lonely_outcast_soul
    @lonely_outcast_soul 4 місяці тому

    I was strugling to solve the very first problems on permutations and combanations but after watching this they are so easy

  • @OPP534
    @OPP534 4 роки тому +1

    you sent me here from the ratio test video. I already liked this video, thanks for the great work my man I promise to donate when I become an engineer

  • @lilitv9723
    @lilitv9723 4 роки тому

    best teacher on earth thnxxx

  • @srujanatulasi7997
    @srujanatulasi7997 3 роки тому +2

    Really helpful thank yuh so much sir 🥰 lots of luv from india ❤️ keep growing n keep vibing 💖

  • @georgesadler7830
    @georgesadler7830 3 роки тому

    MR. Organic Chemistry tutor, thank you for explaining Factorials in Mathematics

  • @denisec.segura2566
    @denisec.segura2566 4 роки тому +3

    if you came for n!/(n+1)! it starts at 5:16

  • @luciennyuba4980
    @luciennyuba4980 Рік тому

    Thanks a million, may YAWHE bless you again and again!

  • @lilbombdope3809
    @lilbombdope3809 6 років тому

    YOU ARE MY SAVIOUR ! LOTS OF SUPPORT.

  • @edenisok894
    @edenisok894 3 роки тому

    Thanks for explaining! I an really behind and math and have decided to do something useful on UA-cam lol. Yeah, not motivated enough to do my work but I'll work on it. I know I really should just get working, because waiting for motivation ever works. But Imma just keep practicing math because my mom pays for classes but I feel like I'm falling behind in those as well and I'm not working hard enough. Enough of my rant though, thank you a lot! Your math videos are very motivating

  • @steveho6011
    @steveho6011 2 роки тому +1

    I learned a lot and it all made sense