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
16503131Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 2000000
B2 = 5438460300
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2002-12-31Daniel Sherburne6800977D23705A5C10839876
Verified2007-08-14Ars Technica Team Prime Rib6800977D23705A5C8139694
History
DateUserTypeResult
2024-06-23linamentNF-PM1
B1=2000000, B2=5438460300
2022-03-22Jon PaceNF
no factor from 2^72 to 2^73
2021-09-23-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-09SRBaseNF
no factor from 2^70 to 2^71
2021-04-06lycornNF
no factor from 2^69 to 2^70
2018-02-10ramgeisNF
no factor from 2^68 to 2^69
2018-02-10ramgeisNF
no factor from 2^67 to 2^68
2016-03-16Mark RoseNF
no factor from 2^65 to 2^66
2014-09-07NesowaNF
no factor from 2^66 to 2^67