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
3442763
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 270
TF target 264
Factored
FactorDigitsBitsDate
16856339996554015363024092580.52025-02-12 12:27:13
ECM
DigitsB1Curves
2550000280 / 280
3025000075 / 640
Estimated T-Level: 25.6
TF below 2^80 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
FactoredJohn LloydEEA040B767C901580Windows,Prime95,v14,NT service,(aka WQ5)
Factored1999-08-16MFS SoftwareEEA040B767C901582847161Windows,Prime95,v17,(aka WT1)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
Certified Good
2025-02-12fordobr2436F067956DA39F1344176253
History
DateUserTypeResult
2025-02-12George WoltmanCERT
Proof certified good
2025-02-12fordobrC-PRPM3442763/1685633999655401536302409 : 2436F067956DA39F
Proof Certified Good

Proof Power: 7

2025-02-12fordobrF-ECMFactor: 1685633999655401536302409 / ECM curve 40, B1=130061, B2=459443985, Edwards Sigma=5201803927244392
2023-05-02Sid & AndyNF-PM1B1=7900000, B2=20272480410
2022-06-15TJAOINFno factor TF: 69-70
2021-06-08NumberwangNF-PM1B1=1000000, B2=30000000
2021-06-05mikrNF-PM1B1=5000000, B2=200000000
2021-01-03axnNFno factor TF: 68-69
2018-08-22JossNF-PM1B1=430000, B2=4300000
2018-08-21JossNF-PM1B1=430000, B2=3870000
2018-07-30TJAOINFno factor TF: 67-68
2017-02-06Gordon SpenceNFno factor TF: 66-67
2017-02-04JossNF-PM1B1=198720
2017-01-29JossNF-PM1B1=165600
2017-01-19JossNF-PM1B1=138000
2017-01-15Squeeky_SquirrelNF-PM1B1=215000, B2=6288750, E=12
2016-02-23Mark RoseNFno factor TF: 62-63
2015-04-15Gordon SpenceNFno factor TF: 65-66
2015-02-07VictordeHollanderNFno factor TF: 64-65
2015-02-07VictordeHollanderNFno factor TF: 63-64
2012-08-18GrunwalderGIMPNFno factor TF: 1-63
2011-08-09markrNFno factor TF: 1-62
2010-10-12markrNF-PM1B1=115000, B2=2558750, E=6
2009-03-22S485122NFno factor TF: 60-61
1999-08-16-anonymous-C-LLEEA040B767C90158