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
81819767Composite: proven not-prime with PRP test
TF
No factors below 275
TF target 275
P-1
B1 = 695000
B2 = 14247500
PRP
StatusDateUserResidueShiftTypeBase
Verified2018-10-08George Woltman5EDEB6B4F2CDAF0A3798792813
Verified2020-01-17ky0uraku5EDEB6B4F2CDAF0A3460760113
History
DateUserTypeResult
2020-01-17ky0urakuC-PRP
5EDEB6B4F2CDAF0A
PRP: Verified
PRP without proof (not generated)
2018-10-08George WoltmanC-PRP
5EDEB6B4F2CDAF0A
PRP: Verified
PRP without proof (not generated)
2016-11-20TheJudgerNF-PM1
B1=695000, B2=14247500, E=12
2016-11-13TheJudgerNF
no factor from 2^74 to 2^75
2016-11-13TheJudgerNF
no factor from 2^73 to 2^74
2016-09-06The MawnNF
no factor from 2^72 to 2^73
2016-09-06The MawnNF
no factor from 2^71 to 2^72
2014-02-24Preben SNF
no factor from 2^70 to 2^71
2013-06-12SMoffatNF
no factor from 2^69 to 2^70
2013-06-11SMoffatNF
no factor from 2^68 to 2^69
2013-06-10SMoffatNF
no factor from 2^67 to 2^68
2013-01-30phoenicisNF
no factor from 2^66 to 2^67
2012-08-05Carsten KossendeyNF
no factor from 2^65 to 2^66
2010-12-15Architects CubedNF
no factor from 2^64 to 2^65