For finding LCM, at 13:20 you mentioned multiply all the factors 2x2x5x2x2x5x3x3, which equals 3600. However, the LCM is 36000. Can you explain what I am missing ? Thanks.
Nice catch! It isn't what you're missing, but what I was missing! If you notice, I factored 4000 into 4 and 100 instead of 4 and 1000 - there should have been another 10 in there! It doesn't change the GCF because the 180 doesn't have another 2 or 5 to overlap, BUT it does add an extra 2 and 5 into the leftmost area of the 4000 circle AND it gives the LCM another 0 so that the correct LCM (as you point out) is 36000! Thank you so much for catching that!
For finding LCM, at 13:20 you mentioned multiply all the factors 2x2x5x2x2x5x3x3, which equals 3600. However, the LCM is 36000. Can you explain what I am missing ? Thanks.
Nice catch!
It isn't what you're missing, but what I was missing! If you notice, I factored 4000 into 4 and 100 instead of 4 and 1000 - there should have been another 10 in there! It doesn't change the GCF because the 180 doesn't have another 2 or 5 to overlap, BUT it does add an extra 2 and 5 into the leftmost area of the 4000 circle AND it gives the LCM another 0 so that the correct LCM (as you point out) is 36000!
Thank you so much for catching that!