Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
49013791Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
41514391100813598784012271.82010-07-02 09:53:36
History
DateUserTypeResult
2010-07-02Jack The RipperF
Factor: 4151439110081359878401
2008-06-03-Anonymous-NF
no factor to 2^64