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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
71217347Composite: proven not-prime with both PRP and Lucas-Lehmer tests
TF
No factors below 275
TF target 274
P-1
B1 = 660000
B2 = 13365000
LL
StatusDateUserResidueShift
Verified2017-03-06Mihai Preda1FD553F725CBD761596057
Verified2024-11-26Manuel Stenschke1FD553F725CBD76166051725
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-10-20Luke Durant686484274530F589013
History
DateUserTypeResult
2024-11-26Manuel StenschkeC-LL
1FD553F725CBD761
2024-10-20Docke28CERT
PRP Certification
CERT proof power = 8
Proof certified good
2024-10-20Luke DurantC-PRP
686484274530F589
PRP proof power = 8
PRP: Verified
Proof certified good
2017-03-06Mihai PredaC-LL
1FD553F725CBD761
2016-08-05-Anonymous-NF
no factor from 2^74 to 2^75
2015-01-04TheJudgerNF-PM1
B1=660000, B2=13365000, E=12
2014-12-21Brian BeuningNF
no factor from 2^73 to 2^74
2014-12-07LingUaanNF
no factor from 2^72 to 2^73
2014-10-31Stef42NF
no factor from 2^71 to 2^72
2013-12-07-Anonymous-NF
no factor from 2^70 to 2^71
2012-11-12GrunwalderGIMPNF
no factor from 2^69 to 2^70
2010-06-11-Anonymous-NF
no factor from 2^68 to 2^69
2010-05-29tmorrowNF
no factor from 2^67 to 2^68
2010-05-26tmorrowNF
no factor from 2^66 to 2^67
2010-05-23Dirk-HRONF
no factor from 2^65 to 2^66
2010-05-19zapy8000NF
no factor from 2^64 to 2^65
2008-10-21Wojciech FlorekNF
no factor to 2^64