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
14866613Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 1500000
B2 = 1435346640
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2002-09-22Jeff Breidenbach0B5EAE17D9AC43EB7265770
Bad2006-02-01S4246768FA3B93E004B6E7311797657
Verified2006-10-01Shane Sanford0B5EAE17D9AC43EB10206301
History
DateUserTypeResult
2024-05-25Sid & AndyNF-PM1
B1=1500000, B2=1435346640
2021-11-30-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-15-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-02SRBaseNF
no factor from 2^70 to 2^71
2021-07-15lycornNF
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
2015-10-18NesowaNF
no factor from 2^66 to 2^67
2014-06-29NesowaNF
no factor from 2^65 to 2^66