What is the greatest common factor of 12 38 and 40?

Answer 1

The factors of 12 are:

1, 2, 3, 4, 6, 12

The factors of 38 are:

1, 2, 19, 38

The factors of 40 are:

1, 2, 4, 5, 8, 10, 20, 40

The common factors are:

1, 2

The Greatest Common Factor (GCF) is:

2

Answer 2

The GCF is 2.