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The least prime p > 3 such that prime(p) - p is a power of 2, otherwise said, the binary representation of p is obtained from that of prime(p) by deleting one bit (which happens to be the most significant bit). [Hasler]

 

  Submitted: 2013-04-10 13:07:56;   Last Modified: 2013-04-10 14:26:46.



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