What is the greatest common factor of 9 and 60?

Answer 1

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

The factors of 9 are 1, 3, and 9.

They have 1 and 3 in common, so 3 is the greatest common factor.

Using the prime factorization method,

60 is 2, 2, 3, and 5.

9 is 3 and 3

They only have a single 3 in common, so the greatest common factor is 3.

Answer 2

The word "GREATEST" is a superlative adjective and that means there can be only one.GCF(9, 60) = 3.

Answer 3

The GCF is 3.

Answer 4

3