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

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Exponent Range:










MnStatusDetails
242449Factored
FactorDigitsBitsDate
366074675391645789975254739274081252843940131.42022-06-03 09:41:54
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000160 / 1566
Estimated T-Level: 30.5 ⓘ
TF below 2^96 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski39E70
Verified (Factored)Unknown39E70
Verified (Factored)Ken KieferA0D5FD491B0AB9E70
Verified (Factored)Brian J. BeesleyA0D5FD491B0AB9E70
Verified (Factored)Eivind TrielA0D5FD491B0AB9E7179952
Verified (Factored)2016-06-01MadPooA0D5FD491B0AB9E7208394
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-06-03SRJ28771A57BF68B8934ED2117891653
P-1 factors
DateFactorB1B2
2022-06-0336607467539164578997525473927408125284391240000005098674210630
History
DateUserTypeResult
2022-06-03LoicCERT
PRP Certification
Proof certified good
2022-06-03SRJ2877C-PRP
M242449/3660746753916457899752547392740812528439 : 1A57BF68B8934ED2
PRP proof power = 5
PRP: Verified
Proof certified good
2022-06-03Sid & AndyF-PM1
Factor: 3660746753916457899752547392740812528439 / (P-1, B1=124000000, B2=5098674210630)
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2019-12-29Gordon SpenceNF
no factor from 2^65 to 2^66
2019-05-08alexNF-PM1
B1=100000000, B2=2000000000, E=12
2018-03-11Gordon SpenceNF
no factor from 2^64 to 2^65
2016-06-01MadPooC-LL
A0D5FD491B0AB9E7
2016-05-13NumberwangNF-PM1
B1=2711, B2=67775
2016-02-23Mark RoseNF
no factor from 2^57 to 2^58
2016-01-17Gordon SpenceNF
no factor from 2^63 to 2^64
2016-01-17Gordon SpenceNF
no factor from 2^62 to 2^63
2015-07-31snme2pm1NF
no factor from 2^61 to 2^62
2014-12-18Denial140NF-PM1
B1=10000000, B2=250000000, E=12
2013-10-12David CampeauNF-PM1
B1=2640000, B2=76560000, E=12
2013-07-18lycornNF
no factor from 2^60 to 2^61
2012-02-26JossNF-PM1
B1=2607601
2011-07-24JossNF-PM1
B1=2086081
2011-02-03JossNF-PM1
B1=2000000
2009-01-25Sturle SundeNF
no factor from 2^59 to 2^60
2008-12-31Sturle SundeNF
no factor from 2^58 to 2^59