Question

What is the greatest common factor of 48 and 84?

Answer 1

The greatest common factor (GCF) of 48 and 84 is 2 x 2 x 3 = 12

The factors of 48 are : 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

The factors of 84 are : 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84

Answer 2

48 -->    48 ÷ 12 = 4

84 ---> 84 ÷ 12 = 7

48 factors ⇒ 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
84 factors ⇒ 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84

GCF ⇒ 12