Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
67310311Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 276
TF target 274
P-1
B1 = 615000
B2 = 12453750
LL
StatusDateUserResidueShift
Verified2015-10-06wally_olsonB9605C04D65B84F43151905
Verified2024-02-01Sergey NosovB9605C04D65B84F420703979
History
DateUserTypeResult
2024-02-01Sergey NosovC-LL
B9605C04D65B84F4
2015-10-06wally_olsonC-LL
B9605C04D65B84F4
2015-06-13Guido LorenziniNF
no factor from 2^75 to 2^76
2015-06-13Guido LorenziniNF
no factor from 2^74 to 2^75
2014-07-22David HruskaNF-PM1
B1=615000, B2=12453750, E=12
2014-05-04TheJudgerNF
no factor from 2^73 to 2^74
2014-04-29NRNF
no factor from 2^72 to 2^73
2014-04-29NRNF
no factor from 2^71 to 2^72
2012-09-14SMoffatNF
no factor from 2^70 to 2^71
2012-02-20wangyun183NF
no factor from 2^69 to 2^70
2010-03-14angel63NF
no factor from 2^68 to 2^69
2010-03-06Per JessenNF
no factor from 2^67 to 2^68
2010-03-04birkovvNF
no factor from 2^66 to 2^67
2010-03-02BigBrotherNF
no factor from 2^65 to 2^66
2010-03-02riccardo ubertiNF
no factor from 2^64 to 2^65
2008-12-09Wojciech FlorekNF
no factor from 2^63 to 2^64