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
814213Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 244
TF below 2^98 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 35000000
B2 = 9987494096580
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000307 / 1566
Estimated T-Level: 31.0 ⓘ
LL
StatusDateUserResidueShift
VerifiedDavid Slowinski214E0
VerifiedPaul Victor NovareseBCAF9AD65BCAE14E0
VerifiedCharles F. Kerchner IIIBCAF9AD65BCAE14E0
Verified2015-04-11MadPooBCAF9AD65BCAE14E639467
History
DateUserTypeResult
2024-02-19Ethan O'ConnorNF-PM1
B1=35000000, B2=9987494096580
2023-05-08masserNF-PP1
Start=6/5, B1=6000000, B2=264000000
2023-03-28masserNF-PP1
Start=107/43, B1=6000000, B2=264000000
2023-03-28masserNF-PP1
Start=2/7, B1=6000000, B2=276000000
2022-04-19lycornNF-PM1
B1=8150000, B2=800608781700
2020-04-20YxinityNF
no factor from 2^69 to 2^70
2020-04-20YxinityNF
no factor from 2^68 to 2^69
2017-08-18Smok_bmv NF
no factor from 2^67 to 2^68
2017-08-18Smok_bmv NF
no factor from 2^66 to 2^67
2017-08-18Smok_bmv NF
no factor from 2^65 to 2^66
2016-03-10lycornNF
no factor from 2^64 to 2^65
2015-09-27Gordon SpenceNF
no factor from 2^63 to 2^64
2015-09-27Gordon SpenceNF
no factor from 2^62 to 2^63
2015-04-11MadPooC-LL
BCAF9AD65BCAE14E
2015-03-06TJAOINF
no factor from 2^61 to 2^62
2014-03-12mikrNF-PM1
B1=8129770, B2=357709880, E=12
2010-06-12Architects CubedNF
no factor from 2^60 to 2^61
2008-10-13Sturle SundeNF
no factor from 2^59 to 2^60
2008-10-13Sturle SundeNF
no factor from 2^58 to 2^59