What is the greatest common factor of 60 and 75?

The GCF of 60 and 75 is 15.

The factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60.

The factors of 75 are 1, 3, 5, 15, 25, and 75.

The GCF of 60 and 75 is 15.

Or, using the prime factorization method:

60=2x2x3x5

75=3x5x5

3 and 5 are in both so, 15