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
68455721Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 276
TF target 274
P-1
B1 = 625000
B2 = 12812500
LL
StatusDateUserResidueShift
Verified2016-03-26ari.ornB9FA70D84B2CC29636704695
Verified2024-02-11MirraB9FA70D84B2CC29631833036
History
DateUserTypeResult
2024-02-11MirraC-LL
B9FA70D84B2CC296
2020-06-25-Anonymous-NF
no factor from 2^75 to 2^76
2016-03-26ari.ornC-LL
B9FA70D84B2CC296
2016-01-21Jerry HallettNF
no factor from 2^74 to 2^75
2014-10-31rx7350NF-PM1
B1=625000, B2=12812500, E=12
2014-08-27Gordon SpenceNF
no factor from 2^73 to 2^74
2014-08-27Gordon SpenceNF
no factor from 2^72 to 2^73
2014-07-24RichD0NF
no factor from 2^71 to 2^72
2012-07-24jondi_hanlucNF
no factor from 2^70 to 2^71
2012-03-05Choi4KANGNF
no factor from 2^69 to 2^70
2010-04-11raymondfNF
no factor from 2^68 to 2^69
2010-04-08alexey77NF
no factor from 2^67 to 2^68
2010-04-06ANONYMOUSNF
no factor from 2^66 to 2^67
2010-01-19Sturle SundeNF
no factor from 2^65 to 2^66
2010-01-16-Anonymous-NF
no factor from 2^64 to 2^65
2008-11-031997rj7NF
no factor to 2^64