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

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MnStatusDetails
2540113Factored
FactorDigitsBitsDate
3122341131448367217059248792788.02020-07-09 19:23:42
ECM
DigitsB1Curves
255000045 / 280
Estimated T-Level: 20.8
TF below 2^64 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Thomas Honold8659E306099B6F790
Verified (Factored)1999-06-15Kent Lee8659E306099B6F79629751
Verified (Factored)2018-06-09kkmrkkblmbrbk8659E306099B6F791522348
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2020-07-10mnd935CCE63B111F69D31110448253
Verified2020-07-10xyuzyz35CCE63B111F69D3152194953
History
DateUserTypeResult
2020-07-10xyuzyzC-PRP
M2540113/312234113144836721705924879 : 35CCE63B111F69D3
PRP: Verified
PRP without proof (not generated)
2020-07-10mnd9C-PRP
M2540113/312234113144836721705924879 : 35CCE63B111F69D3
PRP: Verified
PRP without proof (not generated)
2020-07-09GANF-ECM
Factor: 312234113144836721705924879 / (ECM curve 2, B1=50000, B2=5000000, Sigma=1206125597064985)
2019-04-29TJAOINF
no factor from 2^67 to 2^68
2018-08-30mikrNF-PM1
B1=3000000, B2=135000000, E=12
2018-08-11JossNF-PM1
B1=600000, B2=6000000, E=6
2018-06-09kkmrkkblmbrbkC-LL
8659E306099B6F79
2017-08-08Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-11-08ramgeisNF
no factor from 2^65 to 2^66
2015-02-23VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-23VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-06-15Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-04-05James HeinrichNF-PM1
B1=300000, B2=8000000, E=12
2011-01-07JossNF-PM1
B1=50000
2011-01-02JossNF-PM1
B1=30000
2010-12-19JossNF-PM1
B1=20000
2009-02-04Sturle SundeNF
no factor from 2^60 to 2^61