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

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Exponent Range:










MnStatusDetails
2290177Factored
FactorDigitsBitsDate
461996969384466564131292375.32021-02-16 09:00:54
ECM
DigitsB1Curves
2550000139 / 280
Estimated T-Level: 22.5
TF below 2^70 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)john rheinsteinF6F585EE33E778AB0
Verified (Factored)1999-05-23Jan BraconnierF6F585EE33E778AB654742
Verified (Factored)2018-04-29kkmrkkblmbrbkF6F585EE33E778AB37640
Verified (Factored)2021-02-15SUIGYOF6F585EE33E778AB1994855
Verified (Factored)2021-02-15SUIGYOF6F585EE33E778AB2070317
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-02-16ViliamF9127FCCCA2E147391172254153
History
DateUserTypeResult
2021-02-16John HockingCERT
PRP Certification
Proof certified good
2021-02-16ViliamFC-PRP
M2290177/46199696938446656413129 : 9127FCCCA2E14739
PRP proof power = 7
PRP: Verified
Proof certified good
2021-02-16mnd9F-ECM
Factor: 46199696938446656413129 / (ECM curve 4, B1=50000, B2=5000000, Sigma=7322913421655361)
2021-02-15SUIGYOC-LL
F6F585EE33E778AB
2021-02-15SUIGYOC-LL
F6F585EE33E778AB
2019-10-01BigBrotherNF-PM1
B1=3000000, B2=90000000, E=12
2019-06-17TJAOINF
no factor from 2^67 to 2^68
2018-04-29kkmrkkblmbrbkC-LL
F6F585EE33E778AB
2017-05-20Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-01-01JossNF-PM1
B1=359824, B2=3598240, E=6
2015-11-02ramgeisNF
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
2014-10-03JossNF-PM1
B1=141052
2014-06-11JossNF-PM1
B1=113026
2013-08-20David CampeauNF
no factor from 2^62 to 2^63
2012-05-12Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-16Oscar ÖstlinNF-PM1
B1=85000, B2=1742500, E=6
2010-11-28Oscar ÖstlinNF-PM1
B1=75011
2010-11-15JossNF-PM1
B1=20000
2010-11-07JossNF-PM1
B1=15000
2009-01-11Sturle SundeNF
no factor from 2^60 to 2^61