Question

Which of the following is NOT a prime number? 1057 157 3163 263

Answer 1

Hello there,

Let's remember that a prime number is greater than 1 that has no positive divisors other than 1 and itself.

We want to do the opposite of this ^.
 
1057 is your answer.

Hope this helps.

~Jurgen

Answer 2

The answer is A. 1057. This number can be divided by 1, 7, 151, and itself. It has the traits of a number that is not a prime number.

Answer: A

    ~104