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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MnDetails
7355189
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 269
TF target 267
Factored
FactorDigitsBitsDate
9315566596365276595692169.72020-05-03 14:01:43
P-1 factors
DateFactorsB1B2
2020-05-03931556659636527659569
100000020000000
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
Factored1999-06-26Gustavo FelisbertoFB155DCCF32C92AE2059071Windows,Prime95,v18,(aka WU1)
Factored2002-01-02Adrian WalwynFB155DCCF32C92AE5627661Windows,Prime95,v21,(aka WX1)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2020-05-04oodaira658B70E0A40569281313625153
Verified
PRP without proof (not generated)
2020-05-06arnaud658B70E0A40569281632454653
History
DateUserTypeResult
2020-05-06arnaudC-PRPM7355189/931556659636527659569 : 658B70E0A4056928
2020-05-04oodairaC-PRPM7355189/931556659636527659569 : 658B70E0A4056928
2020-05-03ThaF-PM1Factor: 931556659636527659569 / B1=1000000, B2=20000000
2020-04-17TJAOINFno factor TF: 68-69
2018-08-05ramgeisNFno factor TF: 67-68
2016-10-06Gordon SpenceNFno factor TF: 66-67
2015-06-21VictordeHollanderNFno factor TF: 65-66
2013-11-21David CampeauNFno factor TF: 64-65
2013-10-28NesowaNFno factor TF: 63-64
2012-08-16NesowaNF-PM1B1=90000, B2=1642500, E=6
2002-01-02-anonymous-NF-PM1B1=40000, B2=600000
2002-01-02-anonymous-C-LLFB155DCCF32C92AE
1999-06-26-anonymous-C-LLFB155DCCF32C92AE
1998-07-29Olli HeikkiläNFno factor TF: 1-63
1998-07-21-anonymous-NFno factor TF: 1-62