Which one of the following is not a prime number?

A 319 

B 337 

C 389 

D 487 

Solution

Correct Answer: Option A

Prime Numbers :: Numbers which are divisible by only 1 and itself are Prime Numbers.

 

It's answer will be 319.

Because 319 can be divisible by 1,11,29,319

It is quite clear that prime number should be divisible only by itself and by 1.

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