What is the gcf of 18 54 72?

Answer 1

The factors of 6 are:

1, 2, 3, 6

The factors of 18 are:

1, 2, 3, 6, 9, 18

The factors of 72 are:

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

The common factors are:

1, 2, 3, 6

The Greatest Common Factor (GCF) is:

6

Answer 2

6: 2 x 3

15: 3 x 5

18: 2 x 3 x 3

GCF = 3

Answer 3

The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The greatest factor of any number is itself.

Answer 4

The GCF is 3.

Answer 5

The GCF is 6.

Answer 6

The GCF is 18.

Answer 7

The GCF is 2.

Answer 8

The GCF is 9.