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
5136811
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 272
TF target 265
Factored
FactorDigitsBitsDate
15600641909492394728871612580.42025-01-05 14:19:47
ECM
DigitsB1Curves
25500009 / 280
Estimated T-Level: 20.2
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
Factored1999-01-10Del Johnson5290EBBFDE6FF0520Windows,Prime95,v17,(aka WT1)
Factored2000-06-11Sam Scheinman5290EBBFDE6FF0523021182Windows,Prime95,v18,(aka WU1)
Factored2015-04-30MadPoo 🙂5290EBBFDE6FF0523339255Windows 64-bit,Prime95,v26,(aka We4)
PRP
StatusProofDateUserResidueShiftTypeBase
Factored
Certified Good
Power=7
2025-01-11jeriffee6FBE5933AA67CB99372237013
Factored
Certified Good
Power=7
2025-01-11Torchwood Institute6FBE5933AA67CB99510713713
Factored
Certified Good
Power=7
2025-01-11Torchwood Institute6FBE5933AA67CB99381176313
Factored
Certified Good
Power=7
2025-01-11Torchwood Institute6FBE5933AA67CB9914400313
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
Certified Good
2025-01-12Extremofire6FBE5933AA67CB991430554653
History
DateUserTypeResult
2025-01-13colossalfossilCERT
Proof certified good
2025-01-12ExtremofireC-PRPM5136811/1560064190949239472887161 : 6FBE5933AA67CB99
Proof Certified Good

Proof Power: 7

2025-01-11Section 31CERT
Proof certified good
2025-01-11XyzzyCERT
Proof certified good
2025-01-11Torchwood InstituteC-PRP6FBE5933AA67CB99
Proof Certified Good

Proof Power: 7

2025-01-11Torchwood InstituteC-PRP6FBE5933AA67CB99
Proof Certified Good

Proof Power: 7

2025-01-11ChuckCERT
Proof certified good
2025-01-11Torchwood InstituteC-PRP6FBE5933AA67CB99
Proof Certified Good

Proof Power: 7

2025-01-11OdinCERT
Proof certified good
2025-01-11jeriffeeC-PRP6FBE5933AA67CB99
Proof Certified Good

Proof Power: 7

2025-01-05fordobrF-ECMFactor: 1560064190949239472887161 / ECM curve 1, B1=50000, B2=32428935, Edwards Sigma=3500243460590031
2024-09-11Sid & AndyNFno factor TF: 71-72
2022-07-13Sid & AndyNF-PM1B1=4000000, B2=10279039680
2022-01-17mikrNFno factor TF: 70-71
2021-10-06TJAOINFno factor TF: 69-70
2020-10-26TJAOINFno factor TF: 68-69
2019-04-15USAFSSNF-PM1B1=305000, B2=9683750
2018-06-20ramgeisNFno factor TF: 67-68
2016-05-25Gordon SpenceNFno factor TF: 66-67
2016-02-23Mark RoseNFno factor TF: 1-61
2015-08-07snme2pm1NFno factor TF: 65-66
2015-04-30MadPoo 🙂C-LL5290EBBFDE6FF052
2014-12-15VictordeHollanderNFno factor TF: 64-65
2014-12-15VictordeHollanderNFno factor TF: 63-64
2009-10-21S485122NFno factor TF: 62-63
2009-09-16USAFSSNF-PM1B1=60000, B2=1065000, E=6
2008-12-28Sturle SundeNFno factor TF: 61-62
2000-06-11-anonymous-C-LL5290EBBFDE6FF052
1999-01-10Del JohnsonC-LL5290EBBFDE6FF052