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
11829991Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 268
P-1
B1 = 6189107
B2 = 185673210
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2001-08-24Rich JacotA254C9E1A57805375053051
Bad2004-05-25Ferdy KelerDB4790D119E98E2B6542410
Verified2004-06-21Marc Getty / Phil FizurA254C9E1A578053710122757
History
DateUserTypeResult
2024-11-17TheJudgerNF
no factor from 2^72 to 2^73
2022-10-07Naegi MakotoNF
no factor from 2^71 to 2^72
2021-10-16mikrNF
no factor from 2^70 to 2^71
2021-09-21lycornNF
no factor from 2^69 to 2^70
2021-07-28LaurVNF-PM1
B1=6189107, B2=185673210
2019-06-24riccardo ubertiNF-PM1
B1=430000, B2=8500000, E=12
2018-01-14ramgeisNF
no factor from 2^68 to 2^69
2018-01-14ramgeisNF
no factor from 2^67 to 2^68
2016-02-15VictordeHollanderNF
no factor from 2^66 to 2^67
2013-11-02NesowaNF
no factor from 2^65 to 2^66
2013-10-23lycornNF
no factor from 2^64 to 2^65