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
18091037Factored
FactorDigitsBitsDate
5456863037568101487133796974797557006338125.42022-02-22 17:21:31
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0
TF below 2^61 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2005-04-02Bill Moon12676A5384507B0E18064453
Verified (Factored)2007-04-07Torsten Finke12676A5384507B0E14579840
Verified (Factored)2007-04-23nathalia12676A5384507B0E11076230
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2022-11-17Naegi MakotoA2FDEAD6753AD43E11442930653
P-1 factors
DateFactorB1B2
2022-02-225456863037568101487133796974797557006310000001000000
History
DateUserTypeResult
2023-09-04Naegi MakotoNF-PM1
B1=2000000, B2=2680955550
2022-11-17Cosmos95CERT
PRP Certification
Proof certified good
2022-11-17Naegi MakotoC-PRP
M18091037/54568630375681014871337969747975570063 : A2FDEAD6753AD43E
PRP proof power = 8
PRP: Verified
Proof certified good
2022-02-22Sid & AndyF-PM1
Factor: 54568630375681014871337969747975570063 / (P-1, B1=1000000)
2021-11-10gcardonaNF
no factor from 2^72 to 2^73
2021-10-08-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-11SRBaseNF
no factor from 2^70 to 2^71
2020-03-10lycornNF
no factor from 2^69 to 2^70
2017-09-14ramgeisNF
no factor from 2^68 to 2^69
2016-06-01mikrNF
no factor from 2^67 to 2^68
2014-08-17NesowaNF
no factor from 2^66 to 2^67