Why are 16 and 56 the greatest common factor of 8?

Answer 1

8 is the greatest common factor of 16 and 56 because:

2 x 2 x 2 x 2 = 16

2 x 2 x 2 x 7 = 56

The common factors, 2 x 2 x 2 = 8, the GCF