Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
89303153Factored
FactorDigitsBitsDate
4931389761291089734882590232788.72018-11-09 15:38:40
P-1 factors
DateFactorB1B2
2018-11-0949313897612910897348825902372500014318750
History
DateUserTypeResult
2018-11-09J.R. AllenF-PM1
Factor: 493138976129108973488259023 / (P-1, B1=725000, B2=14318750, E=12)
2018-11-06Kevin JagetNF
no factor from 2^75 to 2^76
2018-11-06Kevin JagetNF
no factor from 2^74 to 2^75
2017-09-13gcardonaNF
no factor from 2^73 to 2^74
2017-09-10Matthias WurtingerNF
no factor from 2^72 to 2^73
2014-01-28PascalBieriNF
no factor from 2^71 to 2^72
2013-09-22SMoffatNF
no factor from 2^70 to 2^71
2013-03-25SMoffatNF
no factor from 2^69 to 2^70
2013-03-24SMoffatNF
no factor from 2^68 to 2^69
2013-03-23SMoffatNF
no factor from 2^67 to 2^68
2013-03-21SMoffatNF
no factor from 2^66 to 2^67
2013-03-19GustavNF
no factor from 2^65 to 2^66
2010-11-09Architects CubedNF
no factor from 2^64 to 2^65