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
82279927Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 276
TF target 275
P-1
B1 = 685000
B2 = 13015000
LL
StatusDateUserResidueShift
Verified2018-11-18Ari MäkinenD57CD879658A539874753160
Verified2025-09-15Henrik GreschnerD57CD879658A539843342967
History
DateUserTypeResult
2025-09-15Henrik GreschnerC-LL
D57CD879658A5398
2025-09-10Sid & AndyNF
no factor from 2^75 to 2^76
2018-11-18Ari MäkinenC-LL
D57CD879658A5398
2017-07-13arnaudNF-PM1
B1=685000, B2=13015000
2016-12-23Mark RoseNF
no factor from 2^74 to 2^75
2016-12-10RichD0NF
no factor from 2^73 to 2^74
2016-10-31Judge HaleNF
no factor from 2^72 to 2^73
2016-10-31Judge HaleNF
no factor from 2^71 to 2^72
2011-04-05shaugeNF
no factor from 2^70 to 2^71
2011-04-05shaugeNF
no factor from 2^69 to 2^70
2011-04-05shaugeNF
no factor from 2^68 to 2^69
2011-04-05shaugeNF
no factor from 2^67 to 2^68
2011-04-05shaugeNF
no factor from 2^65 to 2^67
2010-12-13Architects CubedNF
no factor from 2^64 to 2^65