Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
78867079Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 275
TF target 275
P-1
B1 = 665000
B2 = 12635000
LL
StatusDateUserResidueShift
Unverified2017-12-07MingLordDBA08E34A22CCF__22832409
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2025-09-20Jon Nordstrand/aristoLL double-checkLL89.29 % 2025-09-24
History
DateUserTypeResult
2017-12-07MingLordC-LL
DBA08E34A22CCF__
2016-07-07bamNF-PM1
B1=665000, B2=12635000
2016-07-01apocalypseNF
no factor from 2^74 to 2^75
2016-07-01apocalypseNF
no factor from 2^73 to 2^74
2016-07-01apocalypseNF
no factor from 2^72 to 2^73
2016-02-08Judge HaleNF
no factor from 2^71 to 2^72
2013-04-06Clown_RoyalNF
no factor from 2^70 to 2^71
2011-02-07Bruce AndersonNF
no factor from 2^69 to 2^70
2011-02-02Henning GerhardtNF
no factor from 2^68 to 2^69
2011-01-21Sergej LevinNF
no factor from 2^67 to 2^68
2011-01-19korvaNF
no factor from 2^66 to 2^67
2011-01-14Wolfgang StegerNF
no factor from 2^65 to 2^66
2011-01-10stealthaxeNF
no factor from 2^64 to 2^65