Marin Mersenne 2^P-1
Username
Password
Forgot password?
White
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
80421227Composite: proven not-prime with PRP test
TF
No factors below 275
TF target 275
P-1
B1 = 670000
B2 = 12730000
PRP
StatusDateUserResidueShiftTypeBase
Verified2018-06-22Yoon78813D209ACE27652738401813
Verified2019-10-08ky0uraku78813D209ACE27657220269413
History
DateUserTypeResult
2019-10-08ky0urakuC-PRP
78813D209ACE2765
PRP: Verified
PRP without proof (not generated)
2018-06-22YoonC-PRP
78813D209ACE2765
PRP: Verified
PRP without proof (not generated)
2017-04-04arnaudNF-PM1
B1=670000, B2=12730000
2016-10-16TheJudgerNF
no factor from 2^74 to 2^75
2016-10-16TheJudgerNF
no factor from 2^73 to 2^74
2016-04-15John BurroughsNF
no factor from 2^72 to 2^73
2016-04-15John BurroughsNF
no factor from 2^71 to 2^72
2013-10-31SMoffatNF
no factor from 2^70 to 2^71
2013-09-06Kelly LowderNF
no factor from 2^69 to 2^70
2013-09-05ManpowreNF
no factor from 2^68 to 2^69
2013-02-15ArtfulDodgerNF
no factor from 2^67 to 2^68
2013-01-26phoenicisNF
no factor from 2^66 to 2^67
2011-08-10Carsten KossendeyNF
no factor from 2^65 to 2^66
2010-12-09Architects CubedNF
no factor from 2^64 to 2^65