Question

Explain why 51 is not a prime number​

Answer 1

57 is divisible by 1,3,19 and 57

Explanation:

A prime number is a number that is divisible only by 1 and itself; and 57 is not among the numbers like 2,3,5,7,11 etc

Answer 2

Explanation:

51 is not a prime number because it is divisible by 1,3 and 17

and we know prime number are only those number who arenot divisible by any other number except 1