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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2363063Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 263
TF below 2^75 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 14400000
B2 = 36891835890
ECM
DigitsB1Curves
2550000237 / 280
Estimated T-Level: 24.2 ⓘ
LL
StatusDateUserResidueShift
VerifiedJohn LloydCE6C290DF6DA691E0
Verified1999-06-26C. Cooper / S. BooneCE6C290DF6DA691E2055009
Verified2018-05-11kkmrkkblmbrbkCE6C290DF6DA691E541580
History
DateUserTypeResult
2024-03-22TJAOINF
no factor from 2^69 to 2^70
2023-06-18Sid & AndyNF-PM1
B1=14400000, B2=36891835890
2023-03-21JossNF-PM1
B1=1000000, B2=1647836190
2023-01-24JossNF-PM1
B1=1000000, B2=571741170
2021-07-12TJAOINF
no factor from 2^68 to 2^69
2019-04-15TJAOINF
no factor from 2^67 to 2^68
2018-05-11kkmrkkblmbrbkC-LL
CE6C290DF6DA691E
2017-06-13Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-10-29ramgeisNF
no factor from 2^65 to 2^66
2015-08-31mikrNF-PM1
B1=3000000, B2=100000000, E=12
2015-03-09VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-09VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-22JossNF-PM1
B1=144322
2014-08-07JossNF-PM1
B1=117161
2013-12-04Jerry HallettNF
no factor from 2^62 to 2^63
2012-05-30Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-22Oscar ÖstlinNF-PM1
B1=90000, B2=1822500, E=6
2010-12-23Oscar ÖstlinNF-PM1
B1=75011
2010-11-03JossNF-PM1
B1=20000
2009-01-14Sturle SundeNF
no factor from 2^60 to 2^61