Prime numbers are one of the simplest ideas in Mathematics and also one of the most complex to understand.  They are taught in primary school when learning Mathematics yet also stretch the minds of some of the greatest Mathematicians today with some major unsolved problems.  They are used to create beautiful patterns, are the foundation of the security used to protect us on the Internet and also occur is many areas of nature.

What is Rob on, I hear you cry!  Has he hit the Christmas Sherry earlier than usual this year?!  What have prime numbers got to do with swimming?  The answer  to the first question is, alas, “no” and the second question is “not a lot”.  However, you will need to know all the prime numbers under 30 to be able to do the main set in the session this week.  So if you don’t know what a prime number is, a Prime Number can be divided evenly only by 1, or itself. And it must be a whole number greater than 1.  Hence, the prime numbers under 30 are 2, 3, 5, 7, 11, 13, 17, 19, 23 & 29.

See you Saturday!