Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
11617807Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 268
P-1
B1 = 13987842
B2 = 124183569510
ECM
DigitsB1Curves
2550000198 / 280
Estimated T-Level: 23.5 ⓘ
LL
StatusDateUserResidueShift
Verified2001-07-29Hoang Anh VoE7E1D7D1BFCD92431618399
Verified2004-03-26Ars Technica Team Prime RibE7E1D7D1BFCD92437189533
History
DateUserTypeResult
2025-01-21yuriy_5-1NF
no factor from 2^74 to 2^75
2024-09-02yuriy_5-1NF
no factor from 2^73 to 2^74
2024-08-06yuriy_5-1NF
no factor from 2^72 to 2^73
2024-05-23yuriy_5-1NF-PM1
B1=13987842, B2=124183569510
2023-01-02Naegi MakotoNF
no factor from 2^71 to 2^72
2021-08-21LaurVNF-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
2021-05-02Architects CubedNF-PM1
B1=585000, B2=43829000
2018-01-05ramgeisNF
no factor from 2^68 to 2^69
2018-01-05ramgeisNF
no factor from 2^67 to 2^68
2016-01-15VictordeHollanderNF
no factor from 2^66 to 2^67
2015-05-02Sid & AndyNF-PM1
B1=125000, B2=2187500, E=6
2014-12-20NesowaNF
no factor from 2^65 to 2^66
2013-11-05lycornNF
no factor from 2^64 to 2^65