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
2409817Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 263
TF below 2^77 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 9100000
B2 = 46847088750
ECM
DigitsB1Curves
2550000270 / 280
Estimated T-Level: 24.8 ⓘ
LL
StatusDateUserResidueShift
VerifiedGuy Paquet45D3C5D08BE7BBDC0
VerifiedStephen Wood45D3C5D08BE7BBDC0
Verified1999-04-02Wayne Yeung45D3C5D08BE7BBDC1207276
History
DateUserTypeResult
2023-08-27Sid & AndyNF-PM1
B1=9100000, B2=46847088750
2023-05-31JossNF-PM1
B1=1000000, B2=3800026230
2022-11-29JossNF-PM1
B1=1000000, B2=571741170
2019-03-07YxinityNF
no factor from 2^69 to 2^70
2019-02-19Anton RepkoNF
no factor from 2^67 to 2^69
2017-07-02Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-10-21ramgeisNF
no factor from 2^65 to 2^66
2015-02-27VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-27VictordeHollanderNF
no factor from 2^63 to 2^64
2014-03-07mikrNF-PM1
B1=3102822, B2=43439508, E=12
2013-12-04Jerry HallettNF
no factor from 2^62 to 2^63
2012-06-03Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-12-21markrNF-PM1
B1=95000, B2=1923750, E=6
2010-11-16JossNF-PM1
B1=20000
2010-11-09JossNF-PM1
B1=15000
2009-01-13Sturle SundeNF
no factor from 2^60 to 2^61