Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
2036693Factored
FactorDigitsBitsDate
708777084852406214530072375.92023-12-04 11:53:52
18955094569996075786812447780205733107.22019-05-28 05:53:02
ECM
DigitsB1Curves
2550000280 / 280
30250000177 / 640
Estimated T-Level: 26.4 ⓘ
TF below 2^83 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Michael Schruf98D6283338FC25470
Verified (Factored)1999-01-10Kevin Harlan98D6283338FC25471423099
Verified (Factored)2016-07-15Mark Rose98D6283338FC25471120415
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2019-05-29Daniel BambergerE865502DEFE8D0871107152353
Verified (Factored)2019-06-01Chang Chia-TcheE865502DEFE8D087129068253
Verified2023-12-04Naegi MakotoE865502DEFE8D0872113985753
P-1 factors
DateFactorB1B2
2019-05-281895509456999607578681244778020574000000200000000
History
DateUserTypeResult
2023-12-04curtiscCERT
PRP Certification
Proof certified good
2023-12-04Naegi MakotoC-PRP
M2036693/70877708485240621453007/189550945699960757868124477802057 : E865502DEFE8D087
PRP proof power = 7
PRP: Verified
Proof certified good
2023-12-04TJAOIF-ECM
Factor: 70877708485240621453007 / (ECM curve 52, B1=250000, B2=205401735, Sigma=134298262260852)
2019-06-01Chang Chia-TcheC-PRP
M2036693/189550945699960757868124477802057 : E865502DEFE8D087
PRP: Verified (Factored)
PRP without proof (not generated)
2019-05-29Daniel BambergerC-PRP
M2036693/189550945699960757868124477802057 : E865502DEFE8D087
PRP: Verified (Factored)
PRP without proof (not generated)
2019-05-28mikrF-PM1
Factor: 189550945699960757868124477802057 / (P-1, B1=4000000, B2=200000000, E=12)
2019-03-20chuenkitNF
no factor from 2^67 to 2^68
2016-07-29Gordon SpenceNF
no factor from 2^66 to 2^67
2016-07-15Mark RoseC-LL
98D6283338FC2547
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-11-01ramgeisNF
no factor from 2^65 to 2^66
2015-10-05Bruno VictalNF-PM1
B1=500000, B2=15000000, E=12
2015-04-13VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-13VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-17JossNF-PM1
B1=163028
2014-07-04JossNF-PM1
B1=131514
2013-08-29ramgeisNF
no factor from 2^62 to 2^63
2012-02-10Sebastian HornbostelNF
no factor from 2^61 to 2^62
2009-02-05markrNF-PM1
B1=100000, B2=3000000, E=6
2009-01-02Sturle SundeNF
no factor from 2^60 to 2^61