Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
2314709Factored
FactorDigitsBitsDate
53205950405205974103362966572892.12020-08-08 00:11:18
ECM
DigitsB1Curves
255000086 / 280
Estimated T-Level: 21.5 ⓘ
TF below 2^67 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Eric PrestemonFDBFA8FA60B4E9680
Verified (Factored)1999-03-01David PhillipsFDBFA8FA60B4E96830946
Verified (Factored)2018-05-04kkmrkkblmbrbkFDBFA8FA60B4E968355596
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-08-08M MillerDB89B4EDC6494A731104866353
Verified2020-08-18Chang Chia-TcheDB89B4EDC6494A731201479753
History
DateUserTypeResult
2020-08-18Chang Chia-TcheC-PRP
M2314709/5320595040520597410336296657 : DB89B4EDC6494A73
PRP: Verified
PRP without proof (not generated)
2020-08-08M MillerC-PRP
M2314709/5320595040520597410336296657 : DB89B4EDC6494A73
PRP: Verified
PRP without proof (not generated)
2020-08-08GANF-ECM
Factor: 5320595040520597410336296657 / (ECM curve 2, B1=50000, B2=5000000, Sigma=956099628029880)
2019-04-22TJAOINF
no factor from 2^67 to 2^68
2018-05-04kkmrkkblmbrbkC-LL
FDBFA8FA60B4E968
2018-01-09Sid & AndyNF-PM1
B1=6000000, B2=180000000, E=12
2017-06-03Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2015-10-23ramgeisNF
no factor from 2^65 to 2^66
2015-03-03VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-03VictordeHollanderNF
no factor from 2^63 to 2^64
2013-12-06Jerry HallettNF
no factor from 2^62 to 2^63
2012-05-23Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-02-16BudNF-PM1
B1=500000, B2=10000000, E=12
2009-01-17Sturle SundeNF
no factor from 2^60 to 2^61