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
84131893Composite: proven not-prime with PRP test
TF
No factors below 276
TF target 275
P-1
B1 = 670000
B2 = 13065000
PRP
StatusDateUserResidueShiftTypeBase
Verified2019-03-25ky0uraku85311FD953E6FE3B1733002013
Verified2020-10-22Roland Clarkson85311FD953E6FE3B013
History
DateUserTypeResult
2020-10-23curtiscCERT
PRP Certification
CERT proof power = 8
Proof certified good
2020-10-22Roland ClarksonC-PRP
85311FD953E6FE3B
PRP proof power = 8
PRP: Verified
Proof certified good
2019-03-25ky0urakuC-PRP
85311FD953E6FE3B
PRP: Verified
PRP without proof (not generated)
2017-10-28arnaudNF-PM1
B1=670000, B2=13065000, E=6
2017-04-10HardyP GermanyNF
no factor from 2^75 to 2^76
2017-03-27Son JohanNF
no factor from 2^74 to 2^75
2017-03-02RichD0NF
no factor from 2^73 to 2^74
2017-01-04Judge HaleNF
no factor from 2^72 to 2^73
2017-01-04Judge HaleNF
no factor from 2^71 to 2^72
2014-03-06qwertyuio999NF
no factor from 2^70 to 2^71
2013-12-19pussijussiNF
no factor from 2^69 to 2^70
2013-12-15pussijussiNF
no factor from 2^68 to 2^69
2013-02-17timc995NF
no factor from 2^67 to 2^68
2013-02-16Juergen KampmeierNF
no factor from 2^66 to 2^67
2012-08-29Carsten KossendeyNF
no factor from 2^65 to 2^66
2010-12-23Architects CubedNF
no factor from 2^64 to 2^65