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
79076869Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 276
TF target 275
P-1
B1 = 691000
B2 = 830636730
LL
StatusDateUserResidueShift
Verified2018-01-26curtisc0F4F787425E5F0C258412344
Verified2025-10-15Kamil Gorski0F4F787425E5F0C241573805
History
DateUserTypeResult
2025-10-15Kamil GorskiC-LL
0F4F787425E5F0C2
2025-08-09LookASNF-PM1
B1=691000, B2=830636730
2025-07-15ElectricBillNF
no factor from 2^75 to 2^76
2018-01-26curtiscC-LL
0F4F787425E5F0C2
2016-07-28Brian BeuningNF-PM1
B1=665000, B2=13133750, E=6
2016-07-09AirSquirrelsNF
no factor from 2^74 to 2^75
2016-07-09AirSquirrelsNF
no factor from 2^73 to 2^74
2016-06-03Mark RoseNF
no factor from 2^72 to 2^73
2016-04-04Mark RoseNF
no factor from 2^63 to 2^64
2016-02-15DerekNF
no factor from 2^71 to 2^72
2013-01-16igNF
no factor from 2^70 to 2^71
2011-02-12-Anonymous-NF
no factor from 2^69 to 2^70
2011-01-24runeskNF
no factor from 2^68 to 2^69
2011-01-22mtlNF
no factor from 2^67 to 2^68
2011-01-18-Anonymous-NF
no factor from 2^66 to 2^67
2010-11-29Kelly HarlanNF
no factor from 2^65 to 2^66
2010-11-23S00030NF
no factor from 2^64 to 2^65