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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MnStatusDetails
3165139Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
7417524832747991549.4old
ECM
DigitsB1Curves
255000098 / 280
Estimated T-Level: 21.8
TF below 2^67 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-31alpertron6F6771FA41261A42112506053
Verified2017-11-18Oliver Kruse6F6771FA41261A421210008253
History
DateUserTypeResult
2022-09-12JossNF-PM1
B1=1000000, B2=241175550
2022-03-26LordJuliusNF
no factor from 2^66 to 2^67
2022-03-26LordJuliusNF
no factor from 2^65 to 2^66
2022-03-26LordJuliusNF
no factor from 2^64 to 2^65
2022-03-26LordJuliusNF
no factor from 2^63 to 2^64
2022-03-26LordJuliusNF
no factor from 2^62 to 2^63
2022-02-22JossNF-PM1
B1=1000000, B2=134343300
2021-07-05JossNF
no factor from 2^67 to 2^68
2021-01-11JossNF
no factor from 2^64 to 2^65
2021-01-07JossNF
no factor from 2^63 to 2^64
2021-01-06JossNF
no factor from 2^62 to 2^63
2021-01-04JossNF
no factor from 2^61 to 2^62
2021-01-04JossNF
no factor from 2^60 to 2^61
2021-01-04JossNF-PM1
B1=316513, B2=3165139, E=6
2021-01-04JossNF
no factor from 2^59 to 2^60
2021-01-04JossNF-PM1
B1=316513
2021-01-02JossNF-PM1
B1=158256
2017-11-18Oliver KruseC-PRP
M3165139/741752483274799 : 6F6771FA41261A42
PRP: Verified
PRP without proof (not generated)
2017-10-31alpertronC-PRP
M3165139/741752483274799 : 6F6771FA41261A42
PRP: Verified
PRP without proof (not generated)