3^811-1

Open composite · C318

NFS Planning

GNFS Murphy estimate: 8.03e-22
SNFS Murphy score: 5.70e-18
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.48431

Identifiers

Target expression: 3^811-1
Target link: FactorDB page
Target ID: 1000000000018246879
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C318
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(1) 601763.1000814022851.14313619299443.76828439544227183.4422507277804997635333.C318

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 5.70e-18
Skew: 1.48431
Selected: Best

n: 150518086385721614313267273645508220889938121502920653840706666334699140085303081910229871426619208348582052831964095154853601103528278596117024945898941691156488876810548313523636021722151933795786324099049691560304957277829146927175399733352892388867336133946693714223887074452474330470002828271517336578037710099173
# 3^811-1, difficulty: 387.42, skewness: 1.17
# cost: 7.7364e+22, est. time: 36839986.72 GHz days (not accurate yet!)
# Optimized skew: 1.48431 Murphy: 5.70e-18
skew: 1.48431
c7: 1
c0: -3
Y1: -1
Y0: 22185312344622607535965183080365494317672538611578408721
type: snfs