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
79911613Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 275
P-1
B1 = 685000
B2 = 12672500
LL
StatusDateUserResidueShift
Verified2018-05-16Brocke44EF69C5A1D6F6C427418983
Bad2025-09-10ANONYMOUS2D711EC67DBA2C980
Verified2025-09-16Jurzal44EF69C5A1D6F6C48521993
History
DateUserTypeResult
2025-09-16JurzalC-LL
44EF69C5A1D6F6C4
2025-09-10ANONYMOUSC-LL
2D711EC67DBA2C98
2018-05-16BrockeC-LL
44EF69C5A1D6F6C4
2016-12-02NesowaNF-PM1
B1=685000, B2=12672500
2016-08-29AirSquirrelsNF
no factor from 2^74 to 2^75
2016-08-29AirSquirrelsNF
no factor from 2^73 to 2^74
2016-08-29AirSquirrelsNF
no factor from 2^72 to 2^73
2016-03-08RichD0NF
no factor from 2^71 to 2^72
2013-06-02gucsNF
no factor from 2^70 to 2^71
2013-03-25Brian V.NF
no factor from 2^69 to 2^70
2013-01-23irreally9002NF
no factor from 2^68 to 2^69
2011-04-15carlos56NF
no factor from 2^67 to 2^68
2011-03-26sunithayaNF
no factor from 2^66 to 2^67
2010-12-12Craig MeyersNF
no factor from 2^65 to 2^66
2010-11-30Architects CubedNF
no factor from 2^64 to 2^65
2009-05-27Architects CubedNF
no factor from 2^63 to 2^64