Question

Find the composite number.

• A. 41
• B. 43
• C. 45
• D. 47

Answer 1

The correct option is C 45

A composite number is that number which has atleast one factor other than 1 and the number itself.

Factors of 41: 1 and 41
Factors of 43: 1 and 43
Factors of 45: 1, 3, 5, 9, 15 and 45
Factors of 47: 1 and 47

Therefore, 45 is a composite number.