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
706201Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 268
TF target 244
TF below 2^90 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 265500000
B2 = 889701903090
ECM
DigitsB1Curves
2550000280 / 280
30250000456 / 640
Estimated T-Level: 28.6 ⓘ
LL
StatusDateUserResidueShift
VerifiedDavid Slowinski1A470
VerifiedBrian J. Beesley9800FAB7F8799A470
VerifiedCharles F. Kerchner III9800FAB7F8799A470
Verified2015-04-11MadPoo9800FAB7F8799A47256449
History
DateUserTypeResult
2025-01-30timc995NF-PM1
B1=265500000, B2=889701903090
2023-05-10masserNF-PP1
Start=6/5, B1=7000000, B2=336000000
2023-04-16masserNF-PP1
Start=130/17, B1=7000000, B2=322000000
2023-04-13masserNF-PP1
Start=2/7, B1=7000000, B2=336000000
2022-04-01Gordon SpenceNF
no factor from 2^67 to 2^68
2022-01-25LordJuliusNF-PM1
B1=10000000, B2=123010988100
2020-05-04Gordon SpenceNF
no factor from 2^66 to 2^67
2017-06-19Smok_bmv NF
no factor from 2^65 to 2^66
2017-01-19ConductorNF
no factor from 2^64 to 2^65
2015-11-19Sid & AndyNF-PM1
B1=7062010, B2=211860300, E=12
2015-10-13Gordon SpenceNF
no factor from 2^63 to 2^64
2015-10-13Gordon SpenceNF
no factor from 2^62 to 2^63
2015-04-11MadPooC-LL
9800FAB7F8799A47
2015-02-24NRNF
no factor from 2^61 to 2^62
2013-10-24David CampeauNF-PM1
B1=1445000, B2=47685000, E=12
2012-08-29JossNF-PM1
B1=1412402
2011-09-19JossNF-PM1
B1=521566
2011-07-02JossNF-PM1
B1=312939
2010-05-30Architects CubedNF
no factor from 2^60 to 2^61
2008-10-11Sturle SundeNF
no factor from 2^59 to 2^60
2008-10-11Sturle SundeNF
no factor from 2^58 to 2^59