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
11423851Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 268
P-1
B1 = 1069000
B2 = 1005843300
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2001-01-14Ron Lavallee5B0C3B1CA3B791751771199
Verified2004-02-23Ars Technica Team Prime Rib5B0C3B1CA3B791753532832
History
DateUserTypeResult
2024-11-17TheJudgerNF
no factor from 2^72 to 2^73
2024-04-20chevronNF-PM1
B1=1069000, B2=1005843300
2023-02-09One ManNF
no factor from 2^71 to 2^72
2021-08-16SRBaseNF
no factor from 2^70 to 2^71
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
2020-02-09riccardo ubertiNF-PM1
B1=430000, B2=8500000, E=12
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
2015-02-25NesowaNF
no factor from 2^65 to 2^66
2013-11-17lycornNF
no factor from 2^64 to 2^65