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
10010401Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 268
P-1
B1 = 16384000
B2 = 491520000
ECM
DigitsB1Curves
255000039 / 280
Estimated T-Level: 20.7 ⓘ
LL
StatusDateUserResidueShift
Verified2000-10-15Marc Honey404FFA1F51C1C80B9027418
Verified2003-10-08Graham McAlister404FFA1F51C1C80B5214347
History
DateUserTypeResult
2025-09-20yuriy_5-1NF-PM1
B1=16384000, B2=491520000
2023-03-20JacobZNF-PP1
Start=2/7, B1=2000000, B2=150000000
2021-05-19-Anonymous-NF
no factor from 2^73 to 2^74
2021-04-30-Anonymous-NF
no factor from 2^72 to 2^73
2021-04-27-Anonymous-NF
no factor from 2^71 to 2^72
2021-01-06ViliamFNF
no factor from 2^70 to 2^71
2020-10-02ViliamFNF-PM1
B1=5000000, B2=150000000
2020-09-12ViliamFNF-PM1
B1=1000000, B2=30000000
2019-12-02USAFSSNF-PM1
B1=570000, B2=18810000, E=12
2017-12-05YxinityNF
no factor from 2^69 to 2^70
2017-09-21ramgeisNF
no factor from 2^68 to 2^69
2016-03-09mikrNF
no factor from 2^67 to 2^68
2015-11-05VictordeHollanderNF
no factor from 2^66 to 2^67
2015-04-19ThaNF
no factor from 2^65 to 2^66
2012-01-31bcp19NF-PM1
B1=110000, B2=1952500, E=6
2011-09-13David CampeauNF
no factor from 2^64 to 2^65