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
5027131Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 265
P-1
B1 = 4000000
B2 = 8989970220
ECM
DigitsB1Curves
2550000147 / 280
Estimated T-Level: 22.6 ⓘ
LL
StatusDateUserResidueShift
Bad1999-04-13Gordon Cross8B8DE14836CE773F0
Verified2000-08-10Stephen Wood73A3BD3400C571C43309636
Verified2001-06-09Ian Riches73A3BD3400C571C41167365
History
DateUserTypeResult
2022-05-23Sid & AndyNF-PM1
B1=4000000, B2=8989970220
2021-10-21ATHNF-PP1
Start=2/7, B1=2500000, B2=90000000
2021-04-05Dylan DelgadoNF-PM1
B1=560000, B2=16800000, e=12
2021-04-04-Anonymous-NF
no factor from 2^72 to 2^73
2021-04-02-Anonymous-NF
no factor from 2^71 to 2^72
2021-03-31-Anonymous-NF
no factor from 2^70 to 2^71
2021-03-31-Anonymous-NF
no factor from 2^69 to 2^70
2021-02-01TJAOINF
no factor from 2^68 to 2^69
2018-06-07ramgeisNF
no factor from 2^67 to 2^68
2017-02-15Squeeky_SquirrelNF-PM1
B1=300000, B2=9375000, E=12
2016-05-16Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^61 to 2^63
2015-07-27snme2pm1NF
no factor from 2^65 to 2^66
2014-12-15VictordeHollanderNF
no factor from 2^64 to 2^65
2014-12-15VictordeHollanderNF
no factor from 2^63 to 2^64
2014-11-14JossNF-PM1
B1=67767
2009-08-07USAFSSNF-PM1
B1=55000, B2=907500, E=6