Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
86526173Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 276
TF target 275
P-1
B1 = 700000
B2 = 13825000
LL
StatusDateUserResidueShift
Unverified2018-12-31curtisc42DDB1E7922CB6__42248175
History
DateUserTypeResult
2018-12-31curtiscC-LL
42DDB1E7922CB6__
2018-03-29David HruskaNF-PM1
B1=700000, B2=13825000, E=12
2018-02-18TheJudgerNF
no factor from 2^75 to 2^76
2018-02-05Brian BeuningNF
no factor from 2^74 to 2^75
2017-05-24-Anonymous-NF
no factor from 2^73 to 2^74
2015-12-20Mark RoseNF
no factor from 2^72 to 2^73
2013-04-08tomfrNF
no factor from 2^71 to 2^72
2013-04-08tomfrNF
no factor from 2^70 to 2^71
2013-04-08tomfrNF
no factor from 2^69 to 2^70
2013-04-08tomfrNF
no factor from 2^68 to 2^69
2013-04-08tomfrNF
no factor from 2^67 to 2^68
2013-04-04tomfrNF
no factor from 2^72 to 2^73
2013-03-19wangyun183NF
no factor from 2^66 to 2^67
2011-02-03Michael CNF
no factor from 2^65 to 2^66
2010-11-22Architects CubedNF
no factor from 2^64 to 2^65