What are the greatest common factors 6 and15?

Answer 1

The factors of 6 are: 1, 2, 3, 6

The factors of 12 are: 1, 2, 3, 4, 6, 12

The factors of 15 are: 1, 3, 5, 15

The common factors are: 1, 3

• The Greatest Common Factor (GCF) is: 3

Answer 2

The factors are:

• 4 :: 1, 2, 4
• 6 :: 1, 2, 3, 6
• 15 :: 1, 3, 5, 15

The greatest factor common to all three numbers is 1. These three numbers are considered mutually prime.

Answer 3

The GCF of 6 and 12 is 6.

The GCF of 10 and 15 is 5.

Answer 4

The greatest common factor of 6 and 15 is 3.

Answer 5

The GCF is 3.