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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Exponent Range:





MnDetails
5067317
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 270
TF target 265
Factored
FactorDigitsBitsDate
308167915332765197512064.7old
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
Factored1998-06-28Andy Mitchell5CF37FC8B1631A2B0Windows,Prime95,v16,(aka WS1)
Factored2000-05-05Paul Ehrenkaufer5CF37FC8B1631A2B4914885Windows,Prime95,v19,(aka WV1)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbk92149A4C5793D50B1013
Verified
PRP without proof (not generated)
2018-04-29storm551092149A4C5793D50B1117857913
History
DateUserTypeResult
2025-02-04Sid & AndyNF-PM1B1=5100000, B2=7366797900
2025-01-16Sid & AndyNFno factor TF: 68-70
2023-05-11This -Anonymous-NF-PM1B1=50000, B2=1000000
2018-04-29storm5510C-PRPM5067317/30816791533276519751 : 92149A4C5793D50B
2017-09-20kkmrkkblmbrbkC-PRPM5067317/30816791533276519751 : 92149A4C5793D50B
2000-05-05-anonymous-C-LL5CF37FC8B1631A2B
1998-06-28-anonymous-C-LL5CF37FC8B1631A2B
1998-05-16-anonymous-NFno factor TF: 1-61