Question

Find the greatest common factor and lowest common multiple for the following pair 28,12

Answer 1

Greatest common factor: 4

Least common multiple: 2

Explanation:

List all the factors of each number

For 12: 1, 2, 3, 4, 6, 12

For 28: 1, 2, 4, 7, 14, 28

* 1 doesn't count as a multiple. The biggest number both 12 and 28 have in common is 4, the smallest number is 2