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Single Curio View: (Seek other curios for this number) All primes (except 2 and 3) are of form 6*n +/- 1. Note that 120 = 6*20 is the first number such that 6n+1 or 6n-1 does not contain a prime. [Luhn]
Submitted: 2003-03-22 15:35:26; Last Modified: 2008-01-30 11:28:00.
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