What is the gcf of 27 and 45 and 72?

Answer 1

The factors of 27 are:

1, 3, 9, 27

The factors of 45 are:

1, 3, 5, 9, 15, 45

The factors of 72 are:

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

The common factors are:

1, 3, 9

The Greatest Common Factor (GCF) is:

9