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
14771347Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 1400000
B2 = 1361162880
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2002-12-31Stephen WoodD03A4DD15A8135AA437555
Verified2005-08-16Marc Getty / Phil FizurD03A4DD15A8135AA1506319
History
DateUserTypeResult
2023-07-19Sid & AndyNF
no factor from 2^72 to 2^73
2022-04-05Sid & AndyNF-PM1
B1=1400000, B2=1361162880
2021-10-15-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-02SRBaseNF
no factor from 2^70 to 2^71
2021-08-09SRBaseNF
no factor from 2^69 to 2^70
2018-02-18ramgeisNF
no factor from 2^68 to 2^69
2018-02-18ramgeisNF
no factor from 2^67 to 2^68
2015-10-14NesowaNF
no factor from 2^66 to 2^67
2014-09-05NesowaNF
no factor from 2^65 to 2^66