3^839-1

Open composite · C376

NFS Planning

GNFS Murphy estimate: 3.47e-25
SNFS Murphy score: 2.04e-18
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.48829

Identifiers

Target expression: 3^839-1
Target link: FactorDB page
Target ID: 1000000000018247047
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C376
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(1) 333923.9171895546319811169. C376

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 2.04e-18
Skew: 1.48829
Selected: Best

n: 3293042081060096204702201335422448223951237250566277376620987118172219341409815388519418838406983634015833028406367857108416366936697427568453773445048619206403734605670589814457661195558009798840233595198507621981366560139281867628512581439016873624071855741627797970615320504495687549452428052206666233323477540338850784374987371858428357877977871937435428078496117186260759
# 3^839-1, difficulty: 400.78, skewness: 1.17
# cost: 1.68115e+23, est. time: 80054673.57 GHz days (not accurate yet!)
# Optimized skew: 1.48829 Murphy: 2.04e-18
skew: 1.48829
c7: 1
c0: -3
Y1: -1
Y0: 1797010299914431210413179829509605039731475627537851106401
type: snfs