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
15537701Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 269
P-1
B1 = 3000000
B2 = 2332962450
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2003-06-23Ed Nisley4E569046C8644A764016119
Verified2005-11-13Eric Bravick4E569046C8644A7673871
History
DateUserTypeResult
2022-04-10Denial140NF
no factor from 2^74 to 2^75
2022-03-28Denial140NF-PM1
B1=3000000, B2=2332962450
2022-02-03Anton RepkoNF
no factor from 2^72 to 2^74
2021-09-15-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-07SRBaseNF
no factor from 2^70 to 2^71
2021-06-04lycornNF
no factor from 2^69 to 2^70
2018-03-11ramgeisNF
no factor from 2^68 to 2^69
2018-03-11ramgeisNF
no factor from 2^67 to 2^68
2013-12-28NesowaNF
no factor from 2^66 to 2^67
2013-10-07David CampeauNF
no factor from 2^65 to 2^66