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
362081Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 268
TF target 244
TF below 2^101 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 79000000
B2 = 2279782585080
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000604 / 1566
Estimated T-Level: 31.9
LL
StatusDateUserResidueShift
VerifiedDavid Slowinski1C690
VerifiedJeff LuckD82722B44C961C690
VerifiedKlaus KastensD82722B44C961C690
VerifiedEivind TrielD82722B44C961C69239123
Verified2016-06-01MadPooD82722B44C961C69209665
History
DateUserTypeResult
2023-07-20JacobZNF-PM1
B1=79000000, B2=2279782585080
2023-07-18JossNF-PM1
B1=1551216, B2=77884486680
2023-02-05JossNF-PM1
B1=1000000, B2=25961355420
2023-01-08masserNF-PP1
Start=6/5, B1=20000000, B2=620000000
2023-01-02masserNF-PP1
Start=145/19, B1=20000000, B2=620000000
2022-12-31masserNF-PP1
Start=2/7, B1=20000000, B2=640000000
2022-11-04Gordon SpenceNF
no factor from 2^67 to 2^68
2022-09-23LordJuliusNF
no factor from 2^66 to 2^67
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2019-05-07Gordon SpenceNF
no factor from 2^65 to 2^66
2018-02-22Gordon SpenceNF
no factor from 2^64 to 2^65
2018-02-14BloodERazorNF
no factor from 2^64 to 2^65
2016-11-25mikrNF-PM1
B1=60000000, B2=3000000000, E=12
2016-06-01MadPooC-LL
D82722B44C961C69
2015-12-21Gordon SpenceNF
no factor from 2^63 to 2^64
2015-12-21Gordon SpenceNF
no factor from 2^62 to 2^63
2015-07-26NRNF
no factor from 2^61 to 2^62
2013-05-11lycornNF
no factor from 2^60 to 2^61
2012-03-08alpertronNF-PM1
B1=10000000, B2=200000000, E=12
2012-03-05JossNF-PM1
B1=1550216
2011-08-14JossNF-PM1
B1=1240173
2009-02-06Sturle SundeNF
no factor from 2^59 to 2^60
2008-12-29Sturle SundeNF
no factor from 2^58 to 2^59