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The largest known prime number (emirp) of the form (2^(p-1)*(2^p)-1) + 1 where 2^p - 1 is a Mersenne prime. Such numbers are called right perfect primes; the others are 7, 29, and 33550337. [Loungrides]

 

  Submitted: 2003-11-17 18:20:25;   Last Modified: 2008-09-22 14:36:12.



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