What Are Prime Numbers -

A prime number is formally defined as a positive integer having exactly two distinct factors: 1 and itself.

There are several methods for determining if a number is prime: what are prime numbers

The number 2 is the smallest prime number and is unique for being the only even prime number. A prime number is formally defined as a

The number 1 is not a prime number because it only has one factor (itself). what are prime numbers