Question

How to find whether a number is a prime number or not?

Answer 1

Answer:

If a number is only divisible by 1 or number itself, then it is prime number otherwise it was not a prime number.

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Answer 2

Step-by-step explanation:

To prove whether a number is a prime number, first try dividing it by 2, and see if you get a whole number. If you do, it can't be a prime number. If you don't get a whole number, next try dividing it by prime numbers: 3, 5, 7, 11 (9 is divisible by 3) and so on, always dividing by a prime number

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