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:










MnStatusDetails
346627Factored
FactorDigitsBitsDate
585799631929.1old
3528035832554631548.32014-04-02 10:45:27
2730854813484856283395192477.92015-02-06 11:15:57
ECM
DigitsB1Curves
2550000280 / 280
30250000200 / 640
Estimated T-Level: 26.6
TF below 2^83 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-23Oliver Kruse31E23AAADD239E343013
Verified2017-10-13Oliver Kruse31E23AAADD239E34320272513
Verified2017-12-13ATH31E23AAADD239E34316863613
Unverified (Reliable)2020-04-18Oliver Kruse03823BE6DAA075__318321753
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2024-03-15-Anonymous-factor ECM smallC1S20.00 % 2024-03-28
History
DateUserTypeResult
2024-02-15Denial140NF-PM1
B1=1000000, B2=13147103970
2023-11-11Gabriel LignelliNF-PM1
B1=70000
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-18Oliver KruseC-PRP
M346627/585799631/352803583255463/273085481348485628339519 : 03823BE6DAA075__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-12-13ATHC-PRP
M346627/585799631/352803583255463/273085481348485628339519 : 31E23AAADD239E34
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M346627/585799631/352803583255463/273085481348485628339519 : 31E23AAADD239E34
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M346627/known_factors : 31E23AAADD239E34
PRP without proof (not generated)
2015-02-06TJAOIF-ECM
Factor: 273085481348485628339519 / (ECM curve 50, B1=50000, B2=5000000)
2014-04-02TJAOIF
Factor: 352803583255463