Question

Which of the following is the common factor of 16 and 24?

• A. 3
• B. 6
• C. 8
• D. 12

Answer 1

The correct option is C 8

Factor pairs of 16 are:
1x16 = 16;
2x8 = 16;
4x4 = 16

So, factors of 16 = 1,2,4,8,16

Factor pairs of 24 are:
1x24 = 24;
2x12 = 24;
3x8 = 24;
4x6 = 24

Factors of 24 = 1,2,3,4,6,8,12,24

Common factors of 16 and 24 are 1,2,4,and 8.

So, the correct answer is option c.