Question

Find the GFC of 56 and 84. A factor tree for 84 is given below.

A factor tree for 84. 84 breaks into 21 and 4, 21 breaks into 7 and 3, and 4 breaks into 2 and 2.



The GCF of 84 and 56 is .

Answer 1

28

Explanation:

The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56

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

Answer 2

I believe the answer is 28. Hope this helps :)

Explanation: