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
5303297Factored
FactorDigitsBitsDate
29518777087434194327992271.32019-05-24 10:11:02
ECM
DigitsB1Curves
25500009 / 280
Estimated T-Level: 20.2 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-07-11John Snell708E75D8004FB8AE0
Verified (Factored)2000-08-17Wim Simons708E75D8004FB8AE1392504
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2019-05-29vnatin5BBB8C472C2926561279810553
Verified2019-05-29ATH5BBB8C472C292656133071553
P-1 factors
DateFactorB1B2
2019-05-242951877708743419432799100000022500000
History
DateUserTypeResult
2019-05-29ATHC-PRP
M5303297/2951877708743419432799 : 5BBB8C472C292656
PRP: Verified
PRP without proof (not generated)
2019-05-29vnatinC-PRP
M5303297/2951877708743419432799 : 5BBB8C472C292656
PRP: Verified
PRP without proof (not generated)
2019-05-24KingF-PM1
Factor: 2951877708743419432799 / (P-1, B1=1000000, B2=22500000)
2018-06-19ramgeisNF
no factor from 2^67 to 2^68
2016-06-10Gordon SpenceNF
no factor from 2^66 to 2^67
2015-08-15snme2pm1NF
no factor from 2^65 to 2^66
2014-12-23VictordeHollanderNF
no factor from 2^64 to 2^65
2014-12-23VictordeHollanderNF
no factor from 2^63 to 2^64
2010-09-06Squeeky_SquirrelNF-PM1
B1=60000, B2=990000, E=6
2009-08-21Carsten KossendeyNF-PM1
B1=25000, B2=343750
2009-06-02GrunwalderGIMPNF
no factor from 2^62 to 2^63