What is the greatest common factor of 100 and 65?

Answer 1

The GCF of 65 and 100 is 5

To find the greatest common factor (GCF), first you must find the factors for each number.

65 =5 x 13

100 =5 x 5 x 2 x 2

You then find the largest factor that both numbers have in common.

In this case, the GCF of 65 and 100 is 5.

Answer 2

Factors of 100: 1, 2, 4, 5, 10, 20, 25, 50, 100

Factors of 65: 1, 5, 13, 65

GCF (100, 65) = 5