Prime Numbers

Prime numbers have exactly two factors, 1 and themselves.

For example 11 is a prime number as the only whole numbers that divide into it are 1 and 11.

• 1 is not a prime number as it only has one factor.
• The smallest prime number and only even prime number is 2.
• The ten smallest prime numbers are: 2,\,3,\,5,\,7,\,11,\,13,\,17,\,19,\,23 and 29.