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
11671609Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 276
TF target 268
P-1
B1 = 14052618
B2 = 125644559040
ECM
DigitsB1Curves
255000087 / 280
Estimated T-Level: 21.6 ⓘ
LL
StatusDateUserResidueShift
Verified2001-10-20Steve SpicerFCBE36A1015B54858655252
Verified2004-04-29Ars Technica Team Prime RibFCBE36A1015B54858077244
History
DateUserTypeResult
2025-04-28yuriy_5-1NF
no factor from 2^75 to 2^76
2025-01-13yuriy_5-1NF
no factor from 2^74 to 2^75
2024-09-27yuriy_5-1NF-PP1
Start=2/7, B1=1000000, B2=100000000
2024-09-06yuriy_5-1NF
no factor from 2^73 to 2^74
2024-08-16yuriy_5-1NF
no factor from 2^72 to 2^73
2024-07-26yuriy_5-1NF-PM1
B1=14052618, B2=125644559040
2022-11-15Naegi MakotoNF
no factor from 2^71 to 2^72
2021-08-19LaurVNF-PM1
B1=6189107, B2=185673210
2021-08-15SRBaseNF
no factor from 2^70 to 2^71
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
2018-01-05ramgeisNF
no factor from 2^68 to 2^69
2018-01-05ramgeisNF
no factor from 2^67 to 2^68
2016-01-30VictordeHollanderNF
no factor from 2^66 to 2^67
2014-12-20NesowaNF
no factor from 2^65 to 2^66
2013-11-02lycornNF
no factor from 2^64 to 2^65