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| Not sexy! (Posted on 2011-12-13) |
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A sexy prime is a prime number that is 6 more or 6 less than another prime. For example, 23 and 29 are sexy primes. 2 and 3 are not sexy primes, but they are trivial because they divide 6. What is the first prime that does not divide 6, but is not a sexy prime?
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