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
81331711Composite: proven not-prime with PRP test
TF
No factors below 275
TF target 275
P-1
B1 = 690000
B2 = 13972500
PRP
StatusDateUserResidueShiftTypeBase
Verified2018-09-10Mihai Preda85F19170AE251AFE4430466013
Verified2019-11-23ky0uraku85F19170AE251AFE013
History
DateUserTypeResult
2019-11-23ky0urakuC-PRP
85F19170AE251AFE
PRP: Verified
PRP without proof (not generated)
2018-09-10Mihai PredaC-PRP
85F19170AE251AFE
PRP: Verified
PRP without proof (not generated)
2017-05-25David HruskaNF-PM1
B1=690000, B2=13972500, E=12
2016-11-11-Anonymous-NF
no factor from 2^74 to 2^75
2016-11-11-Anonymous-NF
no factor from 2^73 to 2^74
2016-09-16Judge HaleNF
no factor from 2^72 to 2^73
2016-09-16Judge HaleNF
no factor from 2^71 to 2^72
2013-11-07RobishNF
no factor from 2^70 to 2^71
2013-01-31rjbelansNF
no factor from 2^69 to 2^70
2013-01-29rjbelansNF
no factor from 2^68 to 2^69
2011-03-02Aleksey OsadchiyNF
no factor from 2^67 to 2^68
2011-02-24-Anonymous-NF
no factor from 2^66 to 2^67
2011-02-23David SchonbergerNF
no factor from 2^65 to 2^66
2010-12-06Architects CubedNF
no factor from 2^64 to 2^65