What is the GCF of 63 and 126?

Answer 1

The factors of 126 are:

1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126

The factors of 156 are:

1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156

The factors of 212 are:

1, 2, 4, 53, 106, 212

The common factors are:

1, 2

The Greatest Common Factor (GCF) is:

2

Answer 2

You need at least two different numbers in order to have a greatest common factor between them.

Answer 3

Since 63 is a factor of 126, it is automatically the GCF.

Answer 4

The Greatest Common Factor of 126, 180 is 18

Answer 5

You need two or more numbers to find a GCF.

Answer 6

The GCF is: 18

Answer 7

The GCF is 42.

Answer 8

The GCF is 18.

Answer 9

It is: 27