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
55513753Factored
FactorDigitsBitsDate
2874108791476196332848345213929950702338124.42012-10-12 21:02:27
P-1 factors
DateFactorB1B2
2012-10-122874108791476196332848345213929950702355000011550000
History
DateUserTypeResult
2012-10-12ChuckF-PM1
Factor: 28741087914761963328483452139299507023
2012-04-04Craig MeyersNF
no factor from 2^70 to 2^72
2011-07-19sannerud.comNF
no factor from 2^69 to 2^70
2009-03-13RMAC9.5NF
no factor to 2^69
2009-03-07symalladNF
no factor from 2^65 to 2^66
2009-03-06symalladNF
no factor from 2^64 to 2^65
2008-07-02-Anonymous-NF
no factor to 2^64