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
11621839Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 268
P-1
B1 = 12667806
B2 = 111034753830
ECM
DigitsB1Curves
2550000236 / 280
Estimated T-Level: 24.2 ⓘ
LL
StatusDateUserResidueShift
Verified2001-03-18Mark E. Deardorff204BBF58082871F27823916
Verified2004-03-26Gordon M. Spence204BBF58082871F21951524
History
DateUserTypeResult
2025-02-10yuriy_5-1NF
no factor from 2^74 to 2^75
2024-11-22yuriy_5-1NF
no factor from 2^73 to 2^74
2024-08-06yuriy_5-1NF
no factor from 2^72 to 2^73
2024-05-16yuriy_5-1NF-PM1
B1=12667806, B2=111034753830
2022-12-29krackerNF
no factor from 2^71 to 2^72
2021-08-14SRBaseNF
no factor from 2^70 to 2^71
2021-08-07SRBaseNF
no factor from 2^69 to 2^70
2021-05-01Architects CubedNF-PM1
B1=580000, B2=40738000
2018-01-01ramgeisNF
no factor from 2^68 to 2^69
2018-01-01ramgeisNF
no factor from 2^67 to 2^68
2016-01-15VictordeHollanderNF
no factor from 2^66 to 2^67
2015-05-03Sid & AndyNF-PM1
B1=125000, B2=2187500, E=6
2014-12-20NesowaNF
no factor from 2^65 to 2^66
2013-11-04lycornNF
no factor from 2^64 to 2^65