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
84370777Composite: proven not-prime with PRP test
TF
No factors below 276
TF target 275
P-1
B1 = 675000
B2 = 13162500
PRP
StatusDateUserResidueShiftTypeBase
Verified2019-04-10ky0uraku72785352E0EB40395793146613
Verified2021-05-03Bill Staffen72785352E0EB4039310345713
History
DateUserTypeResult
2021-05-03Jaron WakleyCERT
PRP Certification
CERT proof power = 9
Proof certified good
2021-05-03Bill StaffenC-PRP
72785352E0EB4039
PRP proof power = 9
PRP: Verified
Proof certified good
2019-04-10ky0urakuC-PRP
72785352E0EB4039
PRP: Verified
PRP without proof (not generated)
2017-11-10bamNF-PM1
B1=675000, B2=13162500, E=12
2017-04-30Sebastian HornbostelNF
no factor from 2^75 to 2^76
2017-04-30Sebastian HornbostelNF
no factor from 2^74 to 2^75
2017-04-22Brian BeuningNF
no factor from 2^73 to 2^74
2017-01-21Judge HaleNF
no factor from 2^72 to 2^73
2017-01-21Judge HaleNF
no factor from 2^71 to 2^72
2013-07-12Norman LeyNF
no factor from 2^70 to 2^71
2013-02-26rx7350NF
no factor from 2^69 to 2^70
2013-02-24rx7350NF
no factor from 2^68 to 2^69
2013-02-21rx7350NF
no factor from 2^67 to 2^68
2013-02-19Juergen KampmeierNF
no factor from 2^66 to 2^67
2012-08-21Carsten KossendeyNF
no factor from 2^65 to 2^66
2010-12-24Architects CubedNF
no factor from 2^64 to 2^65