Question

What is the greatest factor of 60 and 75

Answer 1

15

Explanation:

60 = 2 * 2 * 3 * 5 = 2^2 * 3 * 5

75 = 3 * 5 * 5 = 3 * 5^2

For the GCF, use common factors with lower exponent.

GCF = 3 * 5 = 15

Answer 2

The greatest factor of 60 and 75 is 15.

Reasoning: I found the factors and prime factorization of 60 and 75. The biggest common factor number is the GCF number. So the greatest common factor 60 and 75 is 15.