The book is now available! 1330
(another Prime Pages' Curiosity)
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1330 is the only number m less than 7777777 such that |m - 3^k| is prime for k = 1,2,...,9. [Firoozbakht]


  Submitted: 2004-07-18 01:01:53;   Last Modified: 2008-01-30 11:28:00.

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