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
66813133Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 645000
B2 = 13706250
LL
StatusDateUserResidueShift
Verified2015-07-30Six Blue Boxes760D90B498BF8B9F45045051
Verified2023-10-28aas236_tpu760D90B498BF8B9F25074373
History
DateUserTypeResult
2023-10-28aas236_tpuC-LL
760D90B498BF8B9F
2015-07-30Six Blue BoxesC-LL
760D90B498BF8B9F
2015-04-19TheJudgerNF
no factor from 2^74 to 2^75
2014-12-06The MawnNF
no factor from 2^73 to 2^74
2014-04-13TheJudgerNF-PM1
B1=645000, B2=13706250, E=12
2014-04-06TheJudgerNF
no factor from 2^72 to 2^73
2014-04-06TheJudgerNF
no factor from 2^71 to 2^72
2013-07-12Norman LeyNF
no factor from 2^70 to 2^71
2012-02-13sikafarmi_rendering_farmNF
no factor from 2^69 to 2^70
2009-12-30UngelovendeNF
no factor from 2^68 to 2^69
2009-12-22Rob_DeeNF
no factor from 2^67 to 2^68
2009-12-12Helmut ZulusNF
no factor from 2^66 to 2^67
2009-12-08Helmut ZulusNF
no factor from 2^65 to 2^66
2009-12-04GrunwalderGIMPNF
no factor from 2^64 to 2^65
2009-04-201997rj7NF
no factor to 2^64