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
81942173Composite: proven not-prime with PRP test
TF
No factors below 275
TF target 275
P-1
B1 = 695000
B2 = 14247500
PRP
StatusDateUserResidueShiftTypeBase
Verified2018-06-15Massimo Cappelli (ik5pwa)8E64C523531069994737624813
Verified2020-02-04_p95holder_8E64C52353106999901446913
History
DateUserTypeResult
2020-02-04_p95holder_C-PRP
8E64C52353106999
PRP: Verified
PRP without proof (not generated)
2018-06-15Massimo Cappelli (ik5pwa)C-PRP
8E64C52353106999
PRP: Verified
PRP without proof (not generated)
2017-07-02TheJudgerNF-PM1
B1=695000, B2=14247500, E=12
2016-11-20TheJudgerNF
no factor from 2^74 to 2^75
2016-11-20TheJudgerNF
no factor from 2^73 to 2^74
2016-06-29BdotNF
no factor from 2^72 to 2^73
2016-06-29BdotNF
no factor from 2^71 to 2^72
2014-01-14ITSNF
no factor from 2^70 to 2^71
2013-12-11GrunwalderGIMPNF
no factor from 2^69 to 2^70
2013-10-11-Anonymous-NF
no factor from 2^68 to 2^69
2013-06-13-Anonymous-NF
no factor from 2^67 to 2^68
2011-03-27UngelovendeNF
no factor from 2^66 to 2^67
2011-03-02bzmNF
no factor from 2^65 to 2^66
2010-12-16Architects CubedNF
no factor from 2^64 to 2^65