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
82264591Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 275
TF target 275
P-1
B1 = 685000
B2 = 9932500
LL
StatusDateUserResidueShift
Unverified2017-11-19Evgeniy Zavialov2A08B85F057F4B__61822644
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2025-08-11-Anonymous-LL double-checkLL0.26 % 2025-12-12
History
DateUserTypeResult
2017-11-19Evgeniy ZavialovC-LL
2A08B85F057F4B__
2017-10-04cknoriNF-PM1
B1=685000, B2=9932500
2016-12-12Mark RoseNF
no factor from 2^74 to 2^75
2016-12-10RichD0NF
no factor from 2^73 to 2^74
2016-10-30Judge HaleNF
no factor from 2^72 to 2^73
2016-10-30Judge HaleNF
no factor from 2^71 to 2^72
2011-03-27shaugeNF
no factor from 2^70 to 2^71
2011-03-27shaugeNF
no factor from 2^69 to 2^70
2011-03-27shaugeNF
no factor from 2^68 to 2^69
2011-03-27shaugeNF
no factor from 2^67 to 2^68
2011-03-27shaugeNF
no factor from 2^65 to 2^67
2010-12-17Architects CubedNF
no factor from 2^64 to 2^65