Question

What is the greatest common factor (GCF) of 36 and 42

Answer 1

Explanation:

GCF of 36: 1, 2, 3, 4, 6, 9, 12, 18, 21, 36

GCF of 42: 1, 2, 3, 6, 7, 14, 21, 42

The GCF is 21

Answer 2

The factors of 36 are: 1, 2, 3, 4, 6, 9, 12, 18, 36

The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42

Therefore, the greatest common factor of 36 and 42 is 6.