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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
1846511Factored
FactorDigitsBitsDate
35439249964617822324312271.62021-05-28 18:41:09
386920866091445586657432375.02019-12-12 11:25:39
ECM
DigitsB1Curves
2550000280 / 280
30250000107 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Jens J Loesel35583B3CDC2A8CBC0
Verified (Factored)1999-01-17David Higgs35583B3CDC2A8CBC387613
Verified (Factored)2015-06-29MadPoo35583B3CDC2A8CBC593623
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2019-12-15fre_games8B62FCE8420266C1154504053
Verified (Factored)2019-12-16marssystems8B62FCE8420266C11148641653
Verified2021-05-29marssystems8B62FCE8420266C12141331753
History
DateUserTypeResult
2021-05-29curtiscCERT
PRP Certification
Proof certified good
2021-05-29marssystemsC-PRP
M1846511/38692086609144558665743/3543924996461782232431 : 8B62FCE8420266C1
PRP proof power = 7
PRP: Verified
Proof certified good
2021-05-28TJAOIF-ECM
Factor: 3543924996461782232431 / (ECM curve 87, B1=50000, B2=6600000)
2019-12-16marssystemsC-PRP
M1846511/38692086609144558665743 : 8B62FCE8420266C1
PRP: Verified (Factored)
PRP without proof (not generated)
2019-12-15fre_gamesC-PRP
M1846511/38692086609144558665743 : 8B62FCE8420266C1
PRP: Verified (Factored)
PRP without proof (not generated)
2019-12-12KeysarecoolF-ECM
Factor: 38692086609144558665743 / (ECM curve 2, B1=50000, B2=5000000, Sigma=68440160282934)
2019-06-17TJAOINF
no factor from 2^67 to 2^68
2018-08-06JossNF-PM1
B1=1846511, B2=184651100, E=12
2017-10-27TJAOINF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-09-07ramgeisNF
no factor from 2^65 to 2^66
2015-07-16mikrNF-PM1
B1=2780000, B2=91760000, E=12
2015-06-29MadPooC-LL
35583B3CDC2A8CBC
2015-04-27snme2pm1NF
no factor from 2^64 to 2^65
2015-04-27snme2pm1NF
no factor from 2^63 to 2^64
2014-10-03JossNF-PM1
B1=173382
2014-06-09JossNF-PM1
B1=138622
2011-02-07Carsten KossendeyNF-PM1
B1=100000, B2=1700000, E=6
2011-01-21GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-08Architects CubedNF
no factor from 2^60 to 2^61