Question

What are prime numbers?
​

Answer 1

Prime numbers are positive integers that have only 2 factors: Itself, and 1.

For example, 13 is a prime number because it has only 2 factors that are: 1 and 13.

1 is NOT a prime number as it only has 1 factor which is 1.

Answer 2

A prime number is a natural number greater than 1 that is not a product of two smaller natural numbers.