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

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MnStatusDetails
2459209Factored
FactorDigitsBitsDate
456995792650596252879832375.32020-11-21 11:49:02
ECM
DigitsB1Curves
255000096 / 280
Estimated T-Level: 21.7 ⓘ
TF below 2^67 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Richard Gray98ED19045F4AAB370
Verified (Factored)1999-05-09Barry Wilson98ED19045F4AAB371375848
Verified (Factored)2018-05-26kkmrkkblmbrbk98ED19045F4AAB371034826
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-11-21mrh01E268EEA0D4D8C51200843153
History
DateUserTypeResult
2020-11-21Simon JosefssonCERT
PRP Certification
Proof certified good
2020-11-21mrhC-PRP
M2459209/45699579265059625287983 : 01E268EEA0D4D8C5
PRP proof power = 7
PRP: Verified
Proof certified good
2020-11-21GANF-ECM
Factor: 45699579265059625287983 / (ECM curve 6, B1=50000, B2=5000000, Sigma=7338933610839756)
2019-07-01TJAOINF
no factor from 2^67 to 2^68
2018-05-26kkmrkkblmbrbkC-LL
98ED19045F4AAB37
2017-07-15Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-10-26ramgeisNF
no factor from 2^65 to 2^66
2015-03-03VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-03VictordeHollanderNF
no factor from 2^63 to 2^64
2014-05-29mikrNF-PM1
B1=2382500, B2=85770100, E=12
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-06-07Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-20Oscar ÖstlinNF-PM1
B1=95000, B2=1947500, E=6
2010-12-22JossNF-PM1
B1=20000
2009-01-11Sturle SundeNF
no factor from 2^60 to 2^61