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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
11695597Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 268
P-1
B1 = 14081500
B2 = 121261590450
ECM
DigitsB1Curves
2550000215 / 280
Estimated T-Level: 23.8 ⓘ
LL
StatusDateUserResidueShift
Verified2003-07-13Gerhard H Wrodnigg438661D034FDFFFB10945154
Verified2004-04-09Marc Getty / Phil Fizur438661D034FDFFFB9848037
History
DateUserTypeResult
2025-04-07yuriy_5-1NF
no factor from 2^74 to 2^75
2025-01-08yuriy_5-1NF
no factor from 2^73 to 2^74
2024-09-02yuriy_5-1NF
no factor from 2^72 to 2^73
2024-08-23yuriy_5-1NF-PM1
B1=14081500, B2=121261590450
2021-08-16LaurVNF-PM1
B1=6189107, B2=185673210
2020-03-09Aaron HavilandNF-PM1
B1=380000, B2=8265000, e=12
2018-02-05Oliver KruseNF
no factor from 2^67 to 2^72
2018-01-22ramgeisNF
no factor from 2^68 to 2^69
2018-01-22ramgeisNF
no factor from 2^67 to 2^68
2016-02-08VictordeHollanderNF
no factor from 2^66 to 2^67
2015-05-23Sid & AndyNF-PM1
B1=125000, B2=2187500, E=6
2014-12-20NesowaNF
no factor from 2^65 to 2^66
2013-10-30lycornNF
no factor from 2^64 to 2^65