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
11476807Composite: 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
Verified2001-11-14Alan Vidmar13C9CCC53D810DE34260880
Verified2004-03-26Jeffrey Haskovec13C9CCC53D810DE38508850
History
DateUserTypeResult
2024-11-17TheJudgerNF
no factor from 2^72 to 2^73
2024-05-27chevronNF-PM1
B1=1069000, B2=1111433400
2023-05-14riccardo ubertiNF-PP1
Start=6/5, B1=2300000, B2=48000000
2023-05-11riccardo ubertiNF-PP1
Start=2/7, B1=2000000, B2=40000000
2023-03-03riccardo ubertiNF
no factor from 2^71 to 2^72
2021-08-14SRBaseNF
no factor from 2^70 to 2^71
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
2021-07-30LaurVNF-PM1
B1=6189107, B2=185673210
2020-03-04riccardo ubertiNF-PM1
B1=430000, B2=8500000, E=12
2018-01-04ramgeisNF
no factor from 2^68 to 2^69
2018-01-04ramgeisNF
no factor from 2^67 to 2^68
2016-01-15VictordeHollanderNF
no factor from 2^66 to 2^67
2015-03-15NesowaNF
no factor from 2^65 to 2^66
2013-11-10lycornNF
no factor from 2^64 to 2^65