This number is a prime.
Single Curio View: (Seek other curios for this number)The smallest counterexample to Mersenne's conjecture is the Mersenne number M(11) = 2^11 - 1 = 2047 = 23 * 89, which is a semiprime (and brilliant) rather than a prime, even though 11 is a prime. [Post]
Submitted: 2009-03-04 00:06:35; Last Modified: 2009-03-05 19:20:32.
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