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

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MnStatusDetails
2979311Factored
FactorDigitsBitsDate
1027410351959743397094232476.42020-09-13 17:42:41
ECM
DigitsB1Curves
255000018 / 280
Estimated T-Level: 20.3 ⓘ
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Tony Forbes73E64DA96CCF06A30
Verified (Factored)1999-05-16Brian73E64DA96CCF06A31202664
Verified (Factored)2018-10-19kkmrkkblmbrbk73E64DA96CCF06A3355191
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-09-13ATH165B2437E6199AB01187352253
History
DateUserTypeResult
2020-09-13Ben DeloCERT
PRP Certification
Proof certified good
2020-09-13ATHC-PRP
M2979311/102741035195974339709423 : 165B2437E6199AB0
PRP proof power = 7
PRP: Verified
Proof certified good
2020-09-13GANF-ECM
Factor: 102741035195974339709423 / (ECM curve 3, B1=50000, B2=5000000, Sigma=2865776234229087)
2018-12-27chuenkitNF
no factor from 2^67 to 2^68
2018-10-19kkmrkkblmbrbkC-LL
73E64DA96CCF06A3
2017-12-03Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-28ramgeisNF
no factor from 2^65 to 2^66
2015-05-08VictordeHollanderNF-PM1
B1=1000000, B2=20000000, E=12
2015-04-29VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-29VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-07dbaughNF
no factor from 2^62 to 2^63
2011-11-29markrNF
no factor from 2^61 to 2^62
2010-10-26markrNF-PM1
B1=95000, B2=1995000, E=6
2009-02-14Sturle SundeNF
no factor from 2^60 to 2^61