Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2912369Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 263
TF below 2^77 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 10000000
B2 = 25649387610
ECM
DigitsB1Curves
2550000254 / 280
Estimated T-Level: 24.5 ⓘ
LL
StatusDateUserResidueShift
VerifiedAndre NouwsBEC36F8D192A15A30
Verified1999-05-30Frans RuttenBEC36F8D192A15A32161308
Verified2018-10-03kkmrkkblmbrbkBEC36F8D192A15A32503586
History
DateUserTypeResult
2023-12-06mikrNF-PM1
B1=10000000, B2=25649387610
2023-10-15JossNF-PM1
B1=2595980, B2=5445460020
2023-10-08JossNF-PM1
B1=2595980, B2=2644922280
2023-09-15JossNF-PM1
B1=1000000, B2=4919334420
2023-05-26JossNF-PM1
B1=1000000, B2=2429976780
2023-02-26Architects CubedNF
no factor from 2^69 to 2^70
2021-06-07TJAOINF
no factor from 2^68 to 2^69
2020-03-30masserNF-PM1
B1=5000000, B2=200000000, E=12
2018-12-17chuenkitNF
no factor from 2^67 to 2^68
2018-10-03kkmrkkblmbrbkC-LL
BEC36F8D192A15A3
2017-11-19Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-02-22ramgeisNF
no factor from 2^65 to 2^66
2015-04-25VictordeHollanderNF-PM1
B1=1000000, B2=20000000, E=12
2015-04-25VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-25VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-10dbaughNF
no factor from 2^62 to 2^63
2011-12-18Grant McCrackenNF
no factor from 2^61 to 2^62
2011-01-26markrNF-PM1
B1=105000, B2=2283750, E=6
2010-12-24JossNF-PM1
B1=20000
2009-07-03Carsten KossendeyNF-PM1
B1=15000, B2=168750
2009-02-14Sturle SundeNF
no factor from 2^60 to 2^61