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
11512343Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 268
P-1
B1 = 2500000
B2 = 6981475410
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2001-01-08Kevin Day7ED6DA8C6BB362B03316815
Verified2004-03-01Gordon M. Spence7ED6DA8C6BB362B0875402
History
DateUserTypeResult
2024-11-17TheJudgerNF
no factor from 2^72 to 2^73
2024-04-03linamentNF-PM1
B1=2500000, B2=6981475410
2024-04-02linamentNF-PM1
B1=2500000
2023-02-20Naegi MakotoNF
no factor from 2^71 to 2^72
2021-10-03mikrNF
no factor from 2^70 to 2^71
2021-09-24lycornNF
no factor from 2^69 to 2^70
2018-10-26Sid & AndyNF-PM1
B1=1500000, B2=30000000, E=12
2018-01-18ramgeisNF
no factor from 2^68 to 2^69
2018-01-18ramgeisNF
no factor from 2^67 to 2^68
2016-01-15VictordeHollanderNF
no factor from 2^66 to 2^67
2015-04-07Sid & AndyNF-PM1
B1=125000, B2=2187500, E=6
2014-12-20NesowaNF
no factor from 2^65 to 2^66
2013-11-08lycornNF
no factor from 2^64 to 2^65