Question

1. 20, 16

gcf(20, 16) = ______

Explanation:

Step1: List factors of 20

$1, 2, 4, 5, 10, 20$

Step2: List factors of 16

$1, 2, 4, 8, 16$

Step3: Find common factors

$1, 2, 4$

Step4: Identify greatest common factor

The largest value in the common factors list is 4.

Answer:

4