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133 is the smallest positive integer, n, for which the integer 10n + 5 is divisible by both 3 and 5 and for which none of the integers 10n + 1, 10n + 3, 10n + 7, and 10n + 9 are prime. [Litman]

 

  Submitted: 2001-12-02 15:03:15;   Last Modified: 2008-01-30 11:28:00.



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