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
98091841Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 277
TF target 276
P-1
B1 = 905000
B2 = 19231250
LL
StatusDateUserResidueShift
Unverified2020-02-10Dmitriy Degtiarev00FED99B9BE9F1__65542337
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2024-11-02-Anonymous-LL double-check0.00 % 2024-11-02
History
DateUserTypeResult
2020-02-10Dmitriy DegtiarevC-LL
00FED99B9BE9F1__
2019-11-15TheJudgerNF
no factor from 2^76 to 2^77
2019-11-15TheJudgerNF
no factor from 2^75 to 2^76
2019-11-15TheJudgerNF
no factor from 2^74 to 2^75
2019-10-09Ryan PropperNF-PM1
B1=905000, B2=19231250
2014-01-03processinfoNF
no factor from 2^73 to 2^74
2014-01-03processinfoNF
no factor from 2^72 to 2^73
2014-01-03processinfoNF
no factor from 2^71 to 2^72
2013-08-23timc995NF
no factor from 2^70 to 2^71
2013-08-21ManpowreNF
no factor from 2^69 to 2^70
2013-08-21ManpowreNF
no factor from 2^68 to 2^69
2013-08-21ManpowreNF
no factor from 2^66 to 2^68
2013-07-25JoDuNF
no factor from 2^65 to 2^66