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
72620477Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 275
TF target 274
P-1
B1 = 625000
B2 = 12343750
LL
StatusDateUserResidueShift
Unverified2015-11-08suildurA3A5C2930D9D85__35503073
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2024-06-20HinespLL double-checkLL85.07 % 2025-04-11
History
DateUserTypeResult
2015-11-08suildurC-LL
A3A5C2930D9D85__
2015-08-25James HeinrichNF-PM1
B1=625000, B2=12343750, E=6
2015-08-17bwnNF
no factor from 2^74 to 2^75
2015-08-17bwnNF
no factor from 2^73 to 2^74
2015-08-09Matthias WurtingerNF
no factor from 2^72 to 2^73
2015-03-07srow7NF
no factor from 2^71 to 2^72
2013-04-14Robert_SoCalNF
no factor from 2^70 to 2^71
2012-10-12-Anonymous-NF
no factor from 2^69 to 2^70
2010-08-22Cow_tippingNF
no factor from 2^68 to 2^69
2010-08-18eon_blue_apocalypseNF
no factor from 2^67 to 2^68
2010-08-14GrunwalderGIMPNF
no factor from 2^66 to 2^67
2010-08-13chargerNF
no factor from 2^65 to 2^66
2010-05-25-Anonymous-NF
no factor from 2^64 to 2^65
2008-09-19Wojciech FlorekNF
no factor to 2^64