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Monday, December 26, 2011

6 and Primes

It is an interesting fact that ALL prime numbers beyond 2 and 3 are either 1 more, or 1 less, than a multiple of 6. If you were unaware of this simple factoid you can check out these links for a discussion/explanation of it:

a short explanation: http://www.jimloy.com/number/prime6.htm

a longer explanation: http://tinyurl.com/77l94cc

1 comment:

Akoneminates said...

hi buddy ,
you are right dear but can you explain it .Why it is so ?Can you say some Relatively Prime numbers.