The book is now available! 1215
(another Prime Pages' Curiosity)
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The smallest integer n such that n and n+1 are both products of at least 6 primes: 1215 = 3^5 * 5, 1216 = 2^6 * 19. [Post]

 

  Submitted: 2009-04-10 12:10:45;   Last Modified: 2009-04-10 12:43:48.



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