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
2486689Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 263
TF below 2^75 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 8700000
B2 = 35558312790
ECM
DigitsB1Curves
2550000233 / 280
Estimated T-Level: 24.2 ⓘ
LL
StatusDateUserResidueShift
VerifiedPaul Whitmer42CDD27FA8E977F70
Verified2000-04-12Floris Looyesteyn42CDD27FA8E977F7147989
Verified2018-05-31kkmrkkblmbrbk42CDD27FA8E977F744789
History
DateUserTypeResult
2024-03-22TJAOINF
no factor from 2^69 to 2^70
2023-09-10Sid & AndyNF-PM1
B1=8700000, B2=35558312790
2023-06-16JossNF-PM1
B1=1000000, B2=3870776910
2023-01-07JossNF-PM1
B1=1000000, B2=773508450
2021-06-17TJAOINF
no factor from 2^68 to 2^69
2019-06-03TJAOINF
no factor from 2^67 to 2^68
2018-05-31kkmrkkblmbrbkC-LL
42CDD27FA8E977F7
2017-07-24Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-10-30ramgeisNF
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
2014-11-16mikrNF-PM1
B1=2382500, B2=85770100, E=12
2014-09-03JossNF-PM1
B1=120811
2013-12-04Jerry HallettNF
no factor from 2^62 to 2^63
2012-06-10Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-22Oscar ÖstlinNF-PM1
B1=95000, B2=1947500, E=6
2010-12-22JossNF-PM1
B1=20000
2009-01-11Sturle SundeNF
no factor from 2^60 to 2^61