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
4681253Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 272
TF target 265
TF below 2^75 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 4300000
B2 = 11204171550
ECM
DigitsB1Curves
2550000235 / 280
Estimated T-Level: 24.2 ⓘ
LL
StatusDateUserResidueShift
Verified1998-05-08INTERSHOP Communications3BE6BFD87FAC4BC30
Verified2001-03-25Roy Sirl3BE6BFD87FAC4BC33621726
Verified2017-02-14-Anonymous-3BE6BFD87FAC4BC31606169
History
DateUserTypeResult
2023-03-05Sid & AndyNF-PM1
B1=4300000, B2=11204171550
2021-11-03Aaron HavilandNF-PM1
B1=480000, B2=14400000, e=12
2021-03-24-Anonymous-NF
no factor from 2^71 to 2^72
2021-03-21-Anonymous-NF
no factor from 2^70 to 2^71
2021-03-21-Anonymous-NF
no factor from 2^69 to 2^70
2021-03-21-Anonymous-NF
no factor from 2^68 to 2^69
2018-10-11YxinityNF
no factor from 2^67 to 2^68
2018-06-03BloodERazorNF
no factor from 2^66 to 2^67
2017-02-14-Anonymous-C-LL
3BE6BFD87FAC4BC3
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-07-09snme2pm1NF
no factor from 2^65 to 2^66
2015-02-16monstNF
no factor from 2^64 to 2^65
2015-02-16JayderNF
no factor from 2^63 to 2^64
2013-08-04Squeeky_SquirrelNF-PM1
B1=145000, B2=2972500, E=6
2011-12-11GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-07-06markrNF
no factor from 2^61 to 2^62