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
3151763Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 271
TF target 264
TF below 2^74 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 9400000
B2 = 24089580900
ECM
DigitsB1Curves
2550000217 / 280
Estimated T-Level: 23.9 ⓘ
LL
StatusDateUserResidueShift
Verified1998-06-01Matthew Zaleski711E9E8D13B0C1480
Verified1999-06-06Network Operations Center711E9E8D13B0C148701093
History
DateUserTypeResult
2025-07-22Architects CubedNF
no factor from 2^70 to 2^71
2023-04-02Sid & AndyNF-PM1
B1=9400000, B2=24089580900
2022-12-25mikrNF
no factor from 2^69 to 2^70
2021-06-14TJAOINF
no factor from 2^68 to 2^69
2019-04-30mikrNF-PM1
B1=3000000, B2=100000000, E=12
2019-02-04TJAOINF
no factor from 2^67 to 2^68
2017-04-22Gordon SpenceNF
no factor from 2^66 to 2^67
2015-11-24HBendtzNF-PM1
B1=500000, B2=12000000, e=12
2015-06-17ThaNF
no factor from 2^65 to 2^66
2015-02-11VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-11VictordeHollanderNF
no factor from 2^63 to 2^64
2013-09-04Squeeky_SquirrelNF-PM1
B1=110000, B2=2502500, E=6
2013-01-03dbaughNF
no factor from 2^62 to 2^63
2011-11-06markrNF
no factor to 2^62
2011-09-07Squeeky_SquirrelNF-PM1
B1=55000, B2=935000, E=6
2009-07-03Carsten KossendeyNF-PM1
B1=15000, B2=183750
2009-04-09S485122NF
no factor from 2^60 to 2^61