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
2453573TF
No factors below 269
TF target 263
TF below 2^75 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 8900000
B2 = 34930175280
ECM
DigitsB1Curves
2550000229 / 280
Estimated T-Level: 24.1
LL
StatusDateUserResidueShift
VerifiedGordon WrightDD709911231CCB530
VerifiedSturle SundeDD709911231CCB530
Verified2015-11-15MadPooDD709911231CCB53949697
History
DateUserTypeResult
2023-07-21Sid & AndyNF-PM1
B1=8900000, B2=34930175280
2023-05-27JossNF-PM1
B1=1000000, B2=3645762120
2021-06-17Dylan DelgadoNF-PM1
B1=3730000, B2=414030000
2021-06-03TJAOINF
no factor from 2^68 to 2^69
2019-07-17TJAOINF
no factor from 2^67 to 2^68
2017-07-14Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-11-15MadPooC-LL
DD709911231CCB53
2015-10-25ramgeisNF
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
2014-02-09mikrNF-PM1
B1=3102822, B2=43439508, E=12
2013-12-04Jerry HallettNF
no factor from 2^62 to 2^63
2012-06-07Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-19Oscar ÖstlinNF-PM1
B1=95000, B2=1947500, E=6
2010-12-22JossNF-PM1
B1=20000
2009-01-15Sturle SundeNF
no factor from 2^60 to 2^61