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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
5491303Factored
FactorDigitsBitsDate
54913031825.7old
13064468793371340.22008-09-08 01:36:40
23591516296491341.12008-09-08 01:36:40
237684790269591444.42008-09-08 01:36:40
139279080100919531753.62014-10-02 11:58:12
14816320136730802791960.42016-02-02 12:12:08
939909425434708628172066.32019-06-18 03:32:06
280426828058972195011956732684.52019-08-04 17:33:05
ECM
DigitsB1Curves
255000055 / 280
Estimated T-Level: 21.0 ⓘ
TF below 2^65 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-12-03ATHCA10D53CBD728EE66526718353
Verified (Factored)2018-03-23kkmrkkblmbrbkCA10D53CBD728EE66352693953
Verified (Factored)2019-06-19Niels_Mache_NextcloudCA10D53CBD728EE67266634853
Verified (Factored)2019-08-06nordi867FAE43FA15334C1013
Verified2019-08-07Chang Chia-TcheCA10D53CBD728EE68422494853
P-1 factors
DateFactorB1B2
2019-08-0428042682805897219501195673300000001000000000
History
DateUserTypeResult
2022-06-22LordJuliusNF
no factor from 2^65 to 2^66
2022-06-22LordJuliusNF
no factor from 2^64 to 2^65
2022-06-22LordJuliusNF
no factor from 2^63 to 2^64
2022-06-22LordJuliusNF
no factor from 2^61 to 2^63
2022-05-30Magallan3sF
Factor: 1306446879337 / TF: 1-60
2022-05-30Magallan3sF
Factor: 13927908010091953 / TF: 1-60
2022-05-30Magallan3sF
Factor: 2359151629649 / TF: 1-60
2022-05-30Magallan3sF
Factor: 23768479026959 / TF: 1-60
2022-05-30Magallan3sF
Factor: 54913031 / TF: 1-60
2021-10-15Seth_TrNF-PM1
B1=200000000, B2=36200000000
2021-08-06Seth_TrNF
no factor from 2^66 to 2^67
2019-12-28Seth_TrNF
no factor from 2^67 to 2^68
2019-08-07Chang Chia-TcheC-PRP
M5491303/54913031/1306446879337/2359151629649/23768479026959/13927908010091953/1481632013673080279/93990942543470862817/28042682805897219501195673 : CA10D53CBD728EE6
PRP: Verified
PRP without proof (not generated)
2019-08-06nordiC-PRP
M5491303/known_factors : 867FAE43FA15334C
PRP: Verified
PRP without proof (not generated)
2019-08-04alpertronF-PM1
Factor: 28042682805897219501195673 / (P-1, B1=30000000, B2=1000000000, E=12)
2019-06-19Niels_Mache_NextcloudC-PRP
M5491303/54913031/1306446879337/2359151629649/23768479026959/13927908010091953/1481632013673080279/93990942543470862817 : CA10D53CBD728EE6
PRP: Verified
PRP without proof (not generated)
2019-06-18Seth_TrF
Factor: 93990942543470862817 / TF: 66-67
2018-03-23kkmrkkblmbrbkC-PRP
M5491303/54913031/1306446879337/2359151629649/23768479026959/13927908010091953/1481632013673080279 : CA10D53CBD728EE6
PRP: Verified
PRP without proof (not generated)
2017-12-03ATHC-PRP
M5491303/54913031/1306446879337/2359151629649/23768479026959/13927908010091953/1481632013673080279 : CA10D53CBD728EE6
PRP: Verified
PRP without proof (not generated)
2016-02-02TJAOIF
Factor: 1481632013673080279 / TF: 60-61
2014-10-02TJAOIF
Factor: 13927908010091953 / TF: 53-54
2008-09-08Will EdgingtonF
Factor: 23768479026959
2008-09-08Will EdgingtonF
Factor: 2359151629649
2008-09-08Will EdgingtonF
Factor: 1306446879337