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
3473101
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 270
TF target 264
Factored
FactorDigitsBitsDate
165027835810720503559832556012993.72025-01-12 21:12:31
ECM
DigitsB1Curves
2550000280 / 280
3025000060 / 640
Estimated T-Level: 25.5
TF below 2^80 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
Bad1998-05-01Rick4771C955F50D92800Windows,Prime95,v14,(aka WQ1)
Factored1999-07-30Paul Banks6FF0E739F41BE9F23021648Windows,Prime95,v17,(aka WT1)
Factored1999-09-30Rob Sartain6FF0E739F41BE9F21193534Windows,Prime95,v18,(aka WU1)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
Certified Good
2025-01-12fordobr57780FE24ABFB5571202712453
History
DateUserTypeResult
2025-01-12Torchwood InstituteCERT
Proof certified good
2025-01-12fordobrC-PRPM3473101/16502783581072050355983255601 : 57780FE24ABFB557
Proof Certified Good

Proof Power: 7

2025-01-12fordobrF-ECMFactor: 16502783581072050355983255601 / ECM curve 33, B1=123002, B2=275660385, Edwards Sigma=6586843521277199
2023-05-06Sid & AndyNF-PM1B1=8500000, B2=17301641280
2022-05-04TJAOINFno factor TF: 69-70
2021-11-28mikrNF-PM1B1=5000000, B2=200000000
2021-11-13Aaron HavilandNF-PM1B1=1500000, B2=30000000, E=12
2021-01-09axnNFno factor TF: 68-69
2019-01-07TJAOINFno factor TF: 67-68
2017-02-15Gordon SpenceNFno factor TF: 66-67
2016-02-23Mark RoseNFno factor TF: 62-63
2016-01-04ramgeisNFno factor TF: 65-66
2015-02-07VictordeHollanderNFno factor TF: 64-65
2015-02-07VictordeHollanderNFno factor TF: 63-64
2014-09-26HBendtzNF-PM1B1=500000, B2=10000000, E=12
2014-08-21JossNF-PM1B1=78480
2012-08-18GrunwalderGIMPNFno factor TF: 1-63
2011-11-11USAFSSNF-PM1B1=60000, B2=990000, E=6
2011-07-25Grant McCrackenNFno factor TF: 61-62
2009-07-06Carsten KossendeyNF-PM1B1=20000, B2=235000
2009-03-20S485122NFno factor TF: 60-61
1999-09-30Rob SartainC-LL6FF0E739F41BE9F2
1999-07-30-anonymous-C-LL6FF0E739F41BE9F2
1998-10-29-anonymous-C-LL4771C955F50D9280
1998-10-18-anonymous-C-LL4771C955F50D9280
1998-09-06-anonymous-C-LL4771C955F50D9280
1998-08-09-anonymous-C-LL4771C955F50D9280
1998-08-02-anonymous-C-LL4771C955F50D9280
1998-07-29-anonymous-C-LL4771C955F50D9280
1998-07-05-anonymous-C-LL4771C955F50D9280
1998-06-01-anonymous-C-LL4771C955F50D9280
1998-05-01-anonymous-C-LL4771C955F50D9280
1998-05-01-anonymous-NFno factor TF: 1-60