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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
11667361Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 268
P-1
B1 = 12582912
B2 = 109573764300
ECM
DigitsB1Curves
255000031 / 280
Estimated T-Level: 20.6
LL
StatusDateUserResidueShift
Verified2002-01-15Hugh Molyneux0CE4BEF3A58BA55E5278821
Verified2004-05-11Niklas Lithammer0CE4BEF3A58BA55E313741
History
DateUserTypeResult
2025-01-08yuriy_5-1NF
no factor from 2^74 to 2^75
2025-01-08yuriy_5-1NF
no factor from 2^73 to 2^74
2024-08-20vshNF
no factor from 2^72 to 2^73
2024-04-30yuriy_5-1NF-PM1
B1=12582912, B2=109573764300
2019-12-26riccardo ubertiNF-PM1
B1=430000, B2=8500000, E=12
2018-02-05Oliver KruseNF
no factor from 2^67 to 2^72
2018-01-21ramgeisNF
no factor from 2^68 to 2^69
2018-01-21ramgeisNF
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
2013-11-03lycornNF
no factor from 2^64 to 2^65