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

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MnStatusDetails
2982277Factored
FactorDigitsBitsDate
15897133944870032524159132580.42021-05-07 15:58:29
ECM
DigitsB1Curves
255000069 / 280
Estimated T-Level: 21.2 ⓘ
TF below 2^66 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Emile StateE0FCF6436F9BB5D20
Verified (Factored)1998-01-13Jean-Yves CanartE0FCF6436F9BB5D20
Verified (Factored)2015-11-14MadPooE0FCF6436F9BB5D22592434
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-05-09Klaus NordmannD31F59D63F2167E01186044453
History
DateUserTypeResult
2021-05-09JayderCERT
PRP Certification
Proof certified good
2021-05-09Klaus NordmannC-PRP
M2982277/1589713394487003252415913 : D31F59D63F2167E0
PRP proof power = 7
PRP: Verified
Proof certified good
2021-05-07ZenzomaF-ECM
Factor: 1589713394487003252415913 / (ECM curve 5, B1=50000, B2=5000000, Sigma=7976406722684672)
2021-05-04TJAOINF
no factor from 2^68 to 2^69
2019-10-15BigBrotherNF-PM1
B1=3000000, B2=90000000, E=12
2018-12-27chuenkitNF
no factor from 2^67 to 2^68
2017-12-03Gordon SpenceNF
no factor from 2^66 to 2^67
2017-07-10JossNF-PM1
B1=396800, B2=3968000, E=6
2016-06-18JossNF-PM1
B1=198400, B2=4050000, E=6
2016-02-27omylistNF
no factor from 2^65 to 2^66
2015-11-14MadPooC-LL
E0FCF6436F9BB5D2
2015-04-13lycornNF
no factor from 2^64 to 2^65
2015-04-13lycornNF
no factor from 2^63 to 2^64
2013-01-07dbaughNF
no factor from 2^62 to 2^63
2011-11-25Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-10-25markrNF-PM1
B1=100000, B2=2025000, E=6
2009-02-13Sturle SundeNF
no factor from 2^60 to 2^61