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

PrimeNet Exponent Status

Exponent Range:





MnDetails
7510117
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 270
TF target 267
Factored
FactorDigitsBitsDate
5807835618706792735912169.02020-05-31 23:40:48
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
Factored1999-09-22Lawrence Ng2AB9158A58E9266D5865129Windows,Prime95,v18,NT service,(aka WU5)
Factored2002-02-10Greenlee Brittenum2AB9158A58E9266D5753739Windows,Prime95,v21,(aka WX1)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2020-06-02Oliver Kruse47DE87EB368EF6E71302424753
Verified
PRP without proof (not generated)
2020-06-03marssystems47DE87EB368EF6E7143342953
History
DateUserTypeResult
2025-10-16Sid & AndyNF-PM1B1=2500000, B2=3943416750
2025-06-18GregFFactor: 580783561870679273591 / TF: 68-70
2020-06-03marssystemsC-PRPM7510117/580783561870679273591 : 47DE87EB368EF6E7
2020-06-02Oliver KruseC-PRPM7510117/580783561870679273591 : 47DE87EB368EF6E7
2020-05-31chuenkitFFactor: 580783561870679273591 / TF: 68-69*
2018-07-31ramgeisNFno factor TF: 67-68
2016-09-22Gordon SpenceNFno factor TF: 66-67
2015-06-09VictordeHollanderNFno factor TF: 65-66
2013-11-29David CampeauNFno factor TF: 64-65
2013-10-18NesowaNFno factor TF: 63-64
2012-05-03James HeinrichNF-PM1B1=145000, B2=3117500, E=6
2002-02-10-anonymous-C-LL2AB9158A58E9266D
2002-02-03-anonymous-NF-PM1B1=40000, B2=610000
1999-09-22-anonymous-C-LL2AB9158A58E9266D
1998-07-29-anonymous-NFno factor TF: 1-63
1998-07-29Joel ArmengaudNFno factor TF: 1-61