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

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MnStatusDetails
56849791Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
284105532051367061536072374.62020-10-17 12:11:12
LL
StatusDateUserResidueShift
Verified (Factored)2013-09-25McAlister087119960C9712BC47109526
Verified (Factored)2020-07-04manrus087119960C9712BC10944373
History
DateUserTypeResult
2020-10-17-Anonymous-F
Factor: 28410553205136706153607 / TF: 74-75*
2020-07-04manrusC-LL
087119960C9712BC
2018-11-26chuenkitNF
no factor from 2^73 to 2^74
2016-02-23Mark RoseNF
no factor from 2^58 to 2^63
2016-01-01-Anonymous-NF
no factor from 2^72 to 2^73
2013-09-25McAlisterC-LL
087119960C9712BC
2012-09-09TheJudgerNF-PM1
B1=570000, B2=12397500, E=12
2012-06-11Tom DuellNF
no factor from 2^71 to 2^72
2011-09-16FredrikNF
no factor from 2^70 to 2^71
2011-09-10Geoff WingNF
no factor from 2^69 to 2^70
2011-04-20sunithayaNF
no factor from 2^68 to 2^69
2009-11-19ANONYMOUSNF
no factor from 2^67 to 2^68
2008-08-22James HeinrichNF
no factor from 2^66 to 2^67
2008-08-22James HeinrichNF
no factor from 2^65 to 2^66
2008-08-21arnaudNF
no factor from 2^64 to 2^65
2008-08-21Squeeky_SquirrelNF
no factor from 2^63 to 2^64