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
10081987Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 268
P-1
B1 = 2300000
B2 = 1757730810
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1 ⓘ
LL
StatusDateUserResidueShift
Verified2000-05-17Louis Towles57978CAA7F137DAD9348953
Verified2004-03-01Nick Drake57978CAA7F137DAD2500105
Verified2004-03-16Matt Ries57978CAA7F137DAD7800958
History
DateUserTypeResult
2024-03-08Sid & AndyNF-PM1
B1=2300000, B2=1757730810
2021-05-18-Anonymous-NF
no factor from 2^73 to 2^74
2021-04-29-Anonymous-NF
no factor from 2^72 to 2^73
2021-04-27-Anonymous-NF
no factor from 2^71 to 2^72
2021-01-25ViliamFNF
no factor from 2^70 to 2^71
2020-07-15ViliamFNF-PM1
B1=1000000, B2=10000000
2020-06-24ViliamFNF
no factor from 2^69 to 2^70
2017-10-08ramgeisNF
no factor from 2^68 to 2^69
2017-09-25-Anonymous-NF
no factor from 2^67 to 2^68
2015-11-14VictordeHollanderNF
no factor from 2^66 to 2^67
2015-04-22ThaNF
no factor from 2^65 to 2^66
2011-12-25bcp19NF-PM1
B1=115000, B2=1983750, E=6
2011-10-20David CampeauNF
no factor from 2^64 to 2^65