Question

Which number is a composite number?
A:17
B:37
C:13
D:63

Answer 1

D. 63

Explanation:

17 = 1 × 17

37 = 1 × 37

13 = 1 × 13

63 = 3 × 3 × 7

Answer 2

D. 63

Explanation:

It has more than two factors. (composite)