Marin Mersenne 2^P-1
Username
Password
Forgot password?
White
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2589127Factored
FactorDigitsBitsDate
39047530095567392223192271.72020-07-19 07:09:58
ECM
DigitsB1Curves
255000043 / 280
Estimated T-Level: 20.8
TF below 2^64 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Thomas HonoldE4DB132EE18908780
Verified (Factored)1999-05-02Philip HeedeE4DB132EE18908782418725
Verified (Factored)2018-06-22kkmrkkblmbrbkE4DB132EE1890878210483
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2020-07-20Chang Chia-TcheEE359C0C7A8976E5136595253
Verified2020-07-21marssystemsEE359C0C7A8976E5128330253
History
DateUserTypeResult
2020-07-21marssystemsC-PRP
M2589127/3904753009556739222319 : EE359C0C7A8976E5
PRP: Verified
PRP without proof (not generated)
2020-07-20Chang Chia-TcheC-PRP
M2589127/3904753009556739222319 : EE359C0C7A8976E5
PRP: Verified
PRP without proof (not generated)
2020-07-19GANF-ECM
Factor: 3904753009556739222319 / (ECM curve 1, B1=50000, B2=5000000, Sigma=8166680999239527)
2019-06-03TJAOINF
no factor from 2^67 to 2^68
2018-06-22kkmrkkblmbrbkC-LL
E4DB132EE1890878
2017-08-20Gordon SpenceNF
no factor from 2^66 to 2^67
2016-08-13mikrNF-PM1
B1=3200000, B2=112000000, E=12
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-11-06ramgeisNF
no factor from 2^65 to 2^66
2015-02-27VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-27VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-14dbaughNF
no factor from 2^62 to 2^63
2012-06-22Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-02-21James HeinrichNF-PM1
B1=175000, B2=4112500, E=6
2011-01-13JossNF-PM1
B1=50000
2010-11-15JossNF-PM1
B1=20000
2009-01-31Sturle SundeNF
no factor from 2^60 to 2^61