WHat is the highest common factor that can divide 8 16

WHat is the highest common factor that can divide 8 16
| WHat is the highest common factor that can divide 8, 16, 24, 32 and 40 completely?

A. 8

B. 16

C. 4

D. 2

Please scroll down to see the correct answer and solution guide.

Right Answer is: A

SOLUTION

Factors of 8: 1, 2, 4 and 8
Factors of 16: 1, 2, 4, 8 and 16
Factors of 24: 1, 2, 3, 4, 6, 8, 12 and 24
Factors of 32: 1, 2, 4, 8, 16 and 32
Factors of 40: 1, 2, 4, 5, 8, 10, 20 and 40

The common factors are: 1, 2, 4 and 8
and, the HCF is 8.