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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MnDetails
3864461
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 264
Factored
FactorDigitsBitsDate
23186767824.5old
58308456063191342.42008-09-07 21:12:45
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkA6D9D7382EC7A16C2013
Verified
PRP without proof (not generated)
2017-12-24storm5510A6D9D7382EC7A16C297159313
History
DateUserTypeResult
2022-09-29JossNF-PM1B1=1000000, B2=130364850
2022-05-23JossNF-PM1B1=100000, B2=130364850
2022-03-22JossNF-PM1B1=100000
2022-03-02JossNF-PM1B1=90000
2017-12-24storm5510C-PRPM3864461/23186767/5830845606319 : A6D9D7382EC7A16C
2017-09-20kkmrkkblmbrbkC-PRPM3864461/23186767/5830845606319 : A6D9D7382EC7A16C
2008-09-07Will EdgingtonFFactor: 5830845606319