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:










MnStatusDetails
3754099Factored
FactorDigitsBitsDate
49366983996402716918632272.12009-09-06 09:20:03
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Dax PratherD445E4E029BFE2090
Verified (Factored)1999-07-30Lee Sau DanD445E4E029BFE209563746
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-20kkmrkkblmbrbk14C76620A1830B7D1013
Verified2017-12-04Oliver Kruse14C76620A1830B7D113878213
History
DateUserTypeResult
2022-05-25JossNF-PM1
B1=200000, B2=130364850
2017-12-04Oliver KruseC-PRP
M3754099/4936698399640271691863 : 14C76620A1830B7D
PRP: Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M3754099/4936698399640271691863 : 14C76620A1830B7D
PRP: Verified
PRP without proof (not generated)
2009-09-06JimBaF-ECM
Factor: 4936698399640271691863
2009-07-07Carsten KossendeyNF-PM1
B1=20000, B2=265000
2009-03-04S485122NF
no factor from 2^60 to 2^61