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
2467357Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 263
TF below 2^80 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 8800000
B2 = 45599603280
ECM
DigitsB1Curves
2550000280 / 280
3025000062 / 640
Estimated T-Level: 25.5 ⓘ
LL
StatusDateUserResidueShift
VerifiedLarry Casson0226F51AF7EC4C7D0
Verified1999-10-07Stewart Moffat0226F51AF7EC4C7D1762834
Verified2018-05-28kkmrkkblmbrbk0226F51AF7EC4C7D1950573
History
DateUserTypeResult
2024-04-26TJAOINF
no factor from 2^69 to 2^70
2023-08-04Sid & AndyNF-PM1
B1=8800000, B2=45599603280
2023-07-20JossNF-PM1
B1=1000000, B2=3645762120
2023-03-17JossNF-PM1
B1=1000000, B2=1580899320
2023-03-09JossNF-PM1
B1=1000000, B2=548467920
2021-06-24TJAOINF
no factor from 2^68 to 2^69
2019-06-17TJAOINF
no factor from 2^67 to 2^68
2019-04-17Sid & AndyNF-PM1
B1=6000000, B2=180000000, E=12
2018-05-28kkmrkkblmbrbkC-LL
0226F51AF7EC4C7D
2017-07-16Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-10-27ramgeisNF
no factor from 2^65 to 2^66
2015-03-03VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-03VictordeHollanderNF
no factor from 2^63 to 2^64
2013-10-22David CampeauNF-PM1
B1=590000, B2=15930000, E=12
2013-02-21dbaughNF
no factor from 2^62 to 2^63
2012-06-08Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-11-27JossNF-PM1
B1=246735
2010-11-19JossNF-PM1
B1=20000
2009-02-13Sturle SundeNF
no factor from 2^60 to 2^61