Identify the composite number A 31 B 71 C 51 D 61

Answer 1

To identify the composite number among the options, let's examine each option:

A) 31 - This number is prime (only divisible by 1 and itself). B) 71 - This number is also prime. C) 51 - This number can be divided by 1, 3, 17, and 51. Thus, it is composite. D) 61 - This number is prime.

The composite number among the options is C) 51.