+654 The greatest common factor (GCF) is 4
There are two methods to approach this problem.
1. Listing
You list all the factors of 8 and all the factors of 12 and then you find the greatest common factpr.
8) 1 , 2 , 4 , 8
12) 1 , 2 , 3 , 4 , 6 , 12
2. Prime factorization
First you factorize both numbers...
8) 2 * 2 * 2
12) 2 * 2 * 3
You take numbers that occur in both lists, which is 2 2's and you multiply them together. 2 * 2 is four. The answer is same both ways. The first method is easier in this case, but with bigger numbers, the second method will be eaiser.
