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
79156177Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 276
TF target 275
P-1
B1 = 740000
B2 = 15910000
LL
StatusDateUserResidueShift
Unverified2016-02-01Chun sung sooCC6D720714365E__48072205
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2025-10-11Kamil GorskiLL double-check0.00 % 2025-10-11
History
DateUserTypeResult
2025-07-24ElectricBillNF
no factor from 2^75 to 2^76
2016-04-05Mark RoseNF
no factor from 2^63 to 2^64
2016-02-01Chun sung sooC-LL
CC6D720714365E__
2015-10-03endless_mikeNF
no factor from 2^74 to 2^75
2015-09-27TheJudgerNF-PM1
B1=740000, B2=15910000, E=12
2015-09-15ChuckNF
no factor from 2^73 to 2^74
2013-01-25SWL551NF
no factor from 2^72 to 2^73
2013-01-25SWL551NF
no factor from 2^71 to 2^72
2013-01-25SWL551NF
no factor from 2^70 to 2^71
2013-01-25SWL551NF
no factor from 2^69 to 2^70
2012-04-18ASTERIASNF
no factor from 2^68 to 2^69
2011-01-31-Anonymous-NF
no factor from 2^67 to 2^68
2011-01-26davyNF
no factor from 2^66 to 2^67
2011-01-25firejugglerNF
no factor from 2^65 to 2^66
2010-11-25megavinkNF
no factor from 2^64 to 2^65