Marin Mersenne 2^P-1
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MnStatusDetails
2399087Factored
FactorDigitsBitsDate
331795804510861381262712374.82020-07-28 08:09:53
ECM
DigitsB1Curves
255000070 / 280
Estimated T-Level: 21.3 ⓘ
TF below 2^66 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Mikko TommilaBD5BEBAF5F85A99A0
Verified (Factored)1999-06-15Goede Schueler/Christoph SteinbeckBD5BEBAF5F85A99A1046737
Verified (Factored)2018-05-18kkmrkkblmbrbkBD5BEBAF5F85A99A1532989
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-07-31Klaus NordmannE7172CF173B48404179826953
Verified2020-07-31SRJ2877E7172CF173B484041122490253
History
DateUserTypeResult
2020-07-31SRJ2877C-PRP
M2399087/33179580451086138126271 : E7172CF173B48404
PRP: Verified
PRP without proof (not generated)
2020-07-31Klaus NordmannC-PRP
M2399087/33179580451086138126271 : E7172CF173B48404
PRP: Verified
PRP without proof (not generated)
2020-07-28daveward2005F-ECM
Factor: 33179580451086138126271 / (ECM curve 1, B1=50000, B2=5000000)
2019-02-25TJAOINF
no factor from 2^67 to 2^68
2018-05-18kkmrkkblmbrbkC-LL
BD5BEBAF5F85A99A
2017-06-27Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-12-18mikrNF-PM1
B1=3000000, B2=100000000, E=12
2015-11-05ramgeisNF
no factor from 2^65 to 2^66
2015-03-12VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-12VictordeHollanderNF
no factor from 2^63 to 2^64
2014-11-06JossNF-PM1
B1=143508
2014-08-21JossNF-PM1
B1=116754
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-06-02Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-12-23markrNF-PM1
B1=90000, B2=1845000, E=6
2010-11-16JossNF-PM1
B1=20000
2010-11-08JossNF-PM1
B1=15000
2009-01-15Sturle SundeNF
no factor from 2^60 to 2^61