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
89336831Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 276
TF target 275
P-1
B1 = 725000
B2 = 14318750
LL
StatusDateUserResidueShift
Unverified2019-06-11Egor K55A77B4A07E146__63313127
History
DateUserTypeResult
2019-06-11Egor KC-LL
55A77B4A07E146__
2018-11-04TheJudgerNF-PM1
B1=725000, B2=14318750, E=12
2018-10-15Strolling JellyfishNF
no factor from 2^75 to 2^76
2018-10-11RichD0NF
no factor from 2^74 to 2^75
2017-09-10monstNF
no factor from 2^73 to 2^74
2013-03-22Sergey NosovNF
no factor from 2^66 to 2^73
2013-03-17Florimond C.NF
no factor from 2^65 to 2^66
2010-11-09Architects CubedNF
no factor from 2^64 to 2^65