Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
3661979Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
87887497826.4old
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
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-11kkmrkkblmbrbkA52A99E77E4F014913498753
Verified2017-11-27Oliver KruseA52A99E77E4F01491204871053
History
DateUserTypeResult
2022-06-02JossNF-PM1
B1=200000, B2=130364850
2022-02-28JossNF-PM1
B1=90000
2017-11-27Oliver KruseC-PRP
M3661979/87887497 : A52A99E77E4F0149
PRP: Verified
PRP without proof (not generated)
2017-11-11kkmrkkblmbrbkC-PRP
M3661979/87887497 : A52A99E77E4F0149
PRP: Verified
PRP without proof (not generated)