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
85163993Composite: proven not-prime with PRP test
TF
No factors below 276
TF target 275
P-1
B1 = 675000
B2 = 12656250
PRP
StatusDateUserResidueShiftTypeBase
Verified2019-05-27ky0urakuEFC79D4A83B776B75928244613
Verified2022-03-04techn1ciaNEFC79D4A83B776B7013
History
DateUserTypeResult
2022-03-05oodairaCERT
PRP Certification
CERT proof power = 9
Proof certified good
2022-03-04techn1ciaNC-PRP
EFC79D4A83B776B7
PRP proof power = 9
PRP: Verified
Proof certified good
2019-05-27ky0urakuC-PRP
EFC79D4A83B776B7
PRP: Verified
PRP without proof (not generated)
2019-04-28ATHNF
no factor from 2^63 to 2^64
2019-04-28ATHNF
no factor from 2^1 to 2^63
2017-12-24Charlie_TangoNF-PM1
B1=675000, B2=12656250
2017-08-13TheJudgerNF
no factor from 2^75 to 2^76
2017-08-13TheJudgerNF
no factor from 2^74 to 2^75
2017-04-17-Anonymous-NF
no factor from 2^73 to 2^74
2017-02-22Strolling JellyfishNF
no factor from 2^72 to 2^73
2014-05-06-Anonymous-NF
no factor from 2^71 to 2^72
2013-06-17willmoreNF
no factor from 2^70 to 2^71
2013-03-13-Anonymous-NF
no factor from 2^69 to 2^70
2013-03-07gdbutchNF
no factor from 2^68 to 2^69
2013-02-27saffaNF
no factor from 2^67 to 2^68
2013-02-26-Anonymous-NF
no factor from 2^66 to 2^67
2013-02-04E.LechnerNF
no factor from 2^65 to 2^66
2010-11-24Architects CubedNF
no factor from 2^64 to 2^65