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

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MnDetails
7336289
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 267
Factored
FactorDigitsBitsDate
23993949102785404565146972581.02020-06-10 06:45:02
P-1 factors
DateFactorsB1B2
2020-06-102399394910278540456514697
2650005101250
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
Factored1999-06-15Duncan Frissell5C73A4C81F1EC7C92452783Windows,Prime95,v18,(aka WU1)
Factored2002-07-14Matt Perry5C73A4C81F1EC7C93506105Linux 32-bit,Prime95,v21,(aka WX2)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2020-06-11riccardo uberti9345DE13755880221612327353
Verified
PRP without proof (not generated)
2020-06-12marssystems9345DE1375588022193428053
History
DateUserTypeResult
2025-10-12Sid & AndyNF-PM1B1=2600000, B2=4723030620
2020-06-12marssystemsC-PRPM7336289/2399394910278540456514697 : 9345DE1375588022
2020-06-11riccardo ubertiC-PRPM7336289/2399394910278540456514697 : 9345DE1375588022
2020-06-10player_3236F-PM1Factor: 2399394910278540456514697 / B1=265000, B2=5101250
2018-08-05ramgeisNFno factor TF: 67-68
2016-10-04Gordon SpenceNFno factor TF: 66-67
2015-06-21VictordeHollanderNFno factor TF: 65-66
2013-11-24David CampeauNFno factor TF: 64-65
2013-10-28NesowaNFno factor TF: 63-64
2012-08-11NesowaNF-PM1B1=90000, B2=1642500, E=6
2002-11-02Matt PerryC-LL5C73A4C81F1EC7C9
2002-07-14Matt PerryC-LL5C73A4C81F1EC7C9
2002-06-29Mr P-1NF-PM1B1=40000, B2=600000, E=4
2000-03-08pyropunkNFno factor TF: 1-63
2000-03-08pyropunkNFno factor TF: 1-63
1999-06-15-anonymous-C-LL5C73A4C81F1EC7C9
1998-08-09pyropunkNFno factor TF: 1-63
1998-07-21-anonymous-NFno factor TF: 1-61