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
2967259Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 264
TF below 2^76 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 10000000
B2 = 19544807100
ECM
DigitsB1Curves
2550000252 / 280
Estimated T-Level: 24.5 ⓘ
LL
StatusDateUserResidueShift
VerifiedChris Smith87189EA3AC1DE6DC0
Verified1999-07-27Carsten Straaberg87189EA3AC1DE6DC1289052
Verified2018-10-16kkmrkkblmbrbk87189EA3AC1DE6DC1393896
History
DateUserTypeResult
2023-06-08mikrNF-PM1
B1=10000000, B2=19544807100
2023-06-01JossNF-PM1
B1=1000000, B2=1779277500
2023-04-20TJAOINF
no factor from 2^69 to 2^70
2022-12-09JossNF-PM1
B1=1000000, B2=284427990
2021-11-25Aaron HavilandNF-PM1
B1=1200000, B2=36000000, e=12
2021-05-24TJAOINF
no factor from 2^68 to 2^69
2018-12-25chuenkitNF
no factor from 2^67 to 2^68
2018-10-16kkmrkkblmbrbkC-LL
87189EA3AC1DE6DC
2017-12-03Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-28ramgeisNF
no factor from 2^65 to 2^66
2015-05-08VictordeHollanderNF-PM1
B1=1000000, B2=20000000, E=12
2015-04-29VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-29VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-07dbaughNF
no factor from 2^62 to 2^63
2011-12-04markrNF
no factor from 2^61 to 2^62
2010-10-29markrNF-PM1
B1=95000, B2=1995000, E=6
2009-02-14Sturle SundeNF
no factor from 2^60 to 2^61