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
11467969Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 268
P-1
B1 = 1069000
B2 = 1111433400
ECM
DigitsB1Curves
255000065 / 280
Estimated T-Level: 21.2 ⓘ
LL
StatusDateUserResidueShift
Bad2001-02-25Binary Digits0FFB45BB7E1956183709305
Verified2004-03-01Marc Getty / Phil Fizur4ADE0F758BD27F317017393
Verified2004-06-21Manuel Aybar Garcia-Arango4ADE0F758BD27F319136368
History
DateUserTypeResult
2024-11-17TheJudgerNF
no factor from 2^72 to 2^73
2024-05-23chevronNF-PM1
B1=1069000, B2=1111433400
2023-05-29riccardo ubertiNF-PP1
Start=6/5, B1=2300000, B2=48000000
2023-05-26riccardo ubertiNF-PP1
Start=2/7, B1=2000000, B2=40000000
2023-03-09riccardo ubertiNF
no factor from 2^71 to 2^72
2021-08-15SRBaseNF
no factor from 2^70 to 2^71
2021-08-07SRBaseNF
no factor from 2^69 to 2^70
2021-07-31LaurVNF-PM1
B1=6189107, B2=185673210
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
2015-02-25NesowaNF
no factor from 2^65 to 2^66
2013-11-16lycornNF
no factor from 2^64 to 2^65
2012-02-27James HeinrichNF-PM1
B1=220000, B2=5335000, E=6