Question

What is the greatest common factor (GCF) of 124 and 152?

A. 2
B. 1
C. 8
D. 4

Answer 1

C. 4

Explanation:

factor both numbers

124 = 2 * 2 * 31

152 = 2 * 2 * 2 * 2 * 7

in common

2 * 2

2 * 2 = 4

so the GCF is 4

Answer 2

4

Explanation:

The factors of 124

1, 2 , 31, 62, 124

The factors of 152

1, 2, 4, 8 ,19, 38, 76, 152

Hope this helps