2357

This number is a prime.

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The double Mersenne numbers MMp = 2Mp - 1, (where Mp = 2p - 1) are primes only for p = 2, 3, 5, 7. [Beedassy]

Submitted: 2009-05-09 07:10:10;   Last Modified: 2009-05-09 10:34:13.
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