Unit Digit Factorial Number | Number System Trick | NTPC | GROUP-D; SSC

#Number_System_Trick_NTPC_GROUP_D

[@neerajsahani5947]

Aaplog Ko bas 4! Tak he solve krna h kyoki uske baad sab 0 he aayega
1. 1! K power 100 to 100 to 4 se pura cut jayega to 1! K power Mai 4 ho Jayega to 1×1×1×1 = 1 hoga.
2. 2! Ka power 99 h to usko 4 se divide karenge to 3 reminder bachega to 2! Ka power 3 ho Jayega 2×2×2 ka 8 hoga .
3. 3! Ka power 98 Ko 4 se divide karenge to 2 reminder bachega 3! Ka power 2 ho Jayega 3! Ka Maan 6 hota h to 6×6 = 36 hoga to ecka unit digit 6 hoga.
4. 4! Ka power 97 Ko 4 se divide karne Pr 1 reminder Bach rha h aur 4! Ka value hota h 24 ka unit digit 4 h to 4×1 karenge to 4 he aayega .
Ab Sabko add kr dange
1+8+6+4 = 19 ka unit digit 9 right answer h

[@Bharatvarsh777]

Unit digit 1+8+6+4+0+.....
=19 Ans.=9

[@btsarmy09075]

How?

[@ayushkumarsingh9525]

Salute you brother , very good effort. you have almost covered all the sections in mathematics . thank you, at the last time best revision for exam.

[@Moneygrow-SK]

Gajab sir keep it going on upto to exam nice sir

[@n.k.5476]

Sir number system ka ek pura video/class laiye.
Problem ho rha hai
Sir ek bar TCS wali mathz topic wale jitna bhi topic bacha hai usko complete kijize, waise 80-90% topic complete ho gya hai.
Lekin bache hui 10-20% ko complete kre sir.

[@abhishekkumar-bm1kt]

9 ans👏♥️

[@vikrambarik9389]

Sir app iss Tarah ka exam oriented topic late rahe...pls

[@deepakgaurthakur8107]

Hamesha ki tarah Shandar raha session 😄😄😄😄😄😄😄😄😄😄😄

[@nitinkumarsinha5051]

Cyclicity ke jagah 4 se divide rke remainder theory bhi lga skte hain ?

[@BHIMASTRAtheeducation]

Yes

[@prashantmishra3816]

Bhai ji bahut jabardast trick or samjhane ka tareeka hai.bahut bahut dhanywad

[@VartikaPandey12]

Last ques answer is 9..... And very helpful video.... Thankyou

[@adityashrivastav294]

9 kaise aayega aap please reply kijiye ga kyu ki mera answer kuch or hi aa rha hai please batana aap

[@n.k.5476]

Sir ek din live aaiye. Jyada nhi to km se km 5 min hme motivate krne k liye.

[@TinkugkClasses]

Bhai jish kam se pdai distrub ho vo kam aaj se hi band krdo. Bs aap pdai kr skoge

[@arkgoku6871]

Helpful in aspect of gaining knowledge.❤

[@sachinsingh1246]

Sir please homework vaale question ka sahi ans Kya hoga Mera 9 h..

[@trendingshorts307]

Ha sir phle ye chptr series complete kra do taki rvsn k Sarah mock test LGA ske..thnx sir b continue

[@sushanta_saha]

HW- Unit Digit
Ans.9

[@studymaker8075]

👍

[@ashutoshgotpagar5729]

Plz explain

[@traincatcher4988]

Thanks u sir for the video, thanks i

[@krishnamahto5006]

Sir plz make a video on LCM HCF , number of zeros, and remainder theorem jaise exam mei aate h🙏🙏...and thank you so much for this video best revision ho jaati h ek hi baari mei🙂🙂

[@rahulpp6299]

What is the meaning of 3factorial se jaatha rahe

[@rahulpp6299]

What is the meaning of 3 factorial se jaatha rahe ?

[@munnagiri4406]

Very very nice vedio

[@binodrajbanshi672]

Nice sir

[@hadkardi104]

7 hoga sir aap bahut good teaching karate hai

[@Diptisharma025]

Wow! Maza Aa Gaya 🙏🙏🙏❤️❤️❤️

[@ArvindKumar-wq6kh]

9

[@baadshah8885]

Factorial l questions MTS m aate h kya

[@vinusharma3868]

3 is right ans of last question

[@pathakeducationinstitute7218]

Very very thanks sir

[@PriyankaSingh-dj4ny]

Awesome 👍👍👍

[@sumitsinha6477]

Ans -3
Bahut sundar

[@monupandey5300]

Sir ap ayse he daily series lye previous year ka quest ka

[@nitinkumarsinha5051]

H w . Ka ans 9 hoga?

[@rkworld1452]

Sir aap Jo padhate ho koi nahi padhata. Thank you sir

[@sangitsarkar3438]

1+8+6+4=19 so unit digit is 9

[@mithilauniversity4213]

1+2+9+4=16, 6

[@NikhilKumar-li7cw]

Best video

[@itsallaboutyou4564]

Good

[@spy804]

Nice sir ntpc ke aur question laiye

[@2432768]

Sir homework question answer i got 9..is it correct?

[@priyankanair1712]

Can you explain it here how you got 9

[@vkmotivation1702]

@@priyankanair1712 hmm

[@vkmotivation1702]

@@priyankanair1712 1 +8+6+4=19

[@जयहिन्द-झ2ग]

❤❤❤❤❤ love you ser

[@kaluvahymavathi6697]

I got Last answer 9... ☝️

[@SubhranshuPeda]

Ans 21

[@Ajaykumar95203]

1!*2!*3!...............*28 question answer kya hoga sir (number of jeero)

[@pavanyendluri]

Salute bro super

[@hammyr7628]

Sir science ka numerical ka r video banao na please

[@topstudygk974]

Lajavab sir ji

[@tanuparmar3868]

Jay shree radhey Krishna 🙏🙏

[@niveshsingh1389]

Lst q ans 9🤙

[@premsinha5702]

सर ने जो अंतिम प्रश्न किया है उसका उत्तर:-
जैसा कि हमें पता है कि Factorial 5 के बाद तो unit place पे 0 आने लगेगा इसलिए हमें केवल 1!^100+2!^99+3!^98+4!^97 तक वैल्यू निकालकर ही unit place पता चल जाएगा...
=1!^100+2!^99+3!^98+4!^97
=1^100+2^99+6^97+24^96
अब जिनका भी power,factorial 3 के वैल्यू से ज्यादा है हम उनका cyclicity value लिखेंगे...
1+2^4+6^1+4^2 [24 के unit place को 4 लिए हैं]
=1+16+6+16=39
Hence,unit place is 9

[@tamrejalam1]

Frnd 6 ki or 24 ki power kaise gjat gayi

[@shreyarksharma]

pr sir ne toh 3! se bde ki baat kahi na naki 3 se bda..correct me if i am wrong

[@neerajsahani5947]

behen 5 answer h last question ka

[@EasyStudypointRight]

Nice 👍👍👍👍👍👍👍 sir

[@kumarpritish8699]

Are bhai jab captions nahi ata dena toh band rakha kro na....

[@AMITKUMAR-vq6ee]

Please Bataye unit Digit -4 correct hai ya nahi

[@sipunmahakul3346]

Sir aap se contact kya ho sakta hun

[@niranjanprajapati3083]

H.w answer 19 👍👍👍

[@tanishktripathi8773]

In ans you should mark 9 'only'

[@mathsfunda8248]

Time speed distance ka ek video bhaiya

[@mohnivishwari3704]

Sir aap ki video bahut achhi rehti Mai new video ka bahut wait karti hu

[@shiprapaul2688]

Thankyou sir😊

[@CRPF-wala]

Last question ka unit digit 9 hoga

[@riyakaushik5598]

Cyclilecity yaad na rhh t .. question na aave

[@AmanSharma-18]

TQ sir

[@gourangamaji3658]

Thanks sir 🙏

[@aditya1o022]

How to find last unit digit in this question 1!+2!..........100! Please reply

[@chhotujat9636]

Sir one video banai ishi par please
Sir mughe doubt hai

[@PremsagarSingh-iq6fs]

H.w....
9 answers is correct 💯💯

[@prashantkumar8945]

Sar aapka batya huaa samjh me nahi aarha hai

[@bindashchhoraharshitcreati9683]

Thanku sir

[@soumya.sunshine369]

Thank u sir.

[@mathsfunda8248]

Tnx bhaiya👍❤

[@gurujikiacademy3007]

Mera bhi gala baithne lga video dekhte dekhte

[@sandhyatomar6624]

9 is the right answer

[@pintexkumar8752]

Sir the answer of home work question is 6

[@mayasingh2848]

jb denominator bda hoga tb kya hoga

[@allromanticabc8012]

Sir last question ka unit digit 19 = 9 hoga

[@greenbeast8691]

0 factorial =1 kese

[@MANISHKUMAR-bg1ev]

Next video bano

[@akashganga2855]

Sir slow bataye kare

[@subramanyaswamy1771]

1+2³+3²+4¹+0+0...+0=22, so unit digit 2 answer 2

[@swarupmajumdar5262]

Vi 0 kase ho raha he. 6to the power 95 he na.
Please wxplain year

[@PradeepKumar-sp5vi]

Sir decimal multiplication Ni aata sir mujhe please main prarne bhut kamjor hu

[@srishtiprakash9051]

1+8+6+4=19
Last digit= 9

[@RahulSingh-sc2wj]

Thankyou

[@sonampatel9223]

9is a right ans

[@muraligwwd]

Tq sir..

[@shaileshkumari7632]

1 +8+6+4= 9 unit digit

[@kuljeetsingh9203]

9 ans

[@ajayupadhyay4545]

Home work Ans is 9 unit digit

[@niveshsingh1389]

2 h

[@readingandwritingtoexpress9529]

App Thora slowly bat koro

[@pradip44883]

Sir, 2 ^2! =2^4 =6 nhi hoga?

[@mannukumar515]

9 aaya hai shi h kya answer me

[@manishmotivation7176]

Unit digit 3 hoga

[@wonder_explorer_1177]

Sir

[@riteshraaj333]

7 is right ans.

[@sachinsingh1246]

9
Aaya sir ji

[@AjayKumar-up6uy]

1 right ans.

[@rabisankardas0426]

Guys of want to learn maths than watch aditya ranjan sir ranker gurul kul

[@VivekMishra-xb2cq]

sir last question ka answer 8 aa raha hai, Is it correct ??

[@AMITKUMAR-vq6ee]

4 is at unit place

[@rahulprasad3044]

4

[@Sonuwithrailway9745]

9ans

[@Jimmy_kingdom]

First question ka ans 9 hoga na ki 1

[@Devendersaroha402]

1+8+6+4+1=20 unit digit 0🙏🙏

[@praveenk7353]

It's 19 bro check it you done a mistake at 5!

[@Devendersaroha402]

@@praveenk7353 kya bhai count to shi se krlo check again 🙄🙄🙏🙏😂😂

[@marathimotivational_1001]

U.D 3

[@AkashKumar-sv2pj]

Answer 4