10-

10^439-1

Open composite · C336

NFS Planning

GNFS Murphy estimate: 7.26e-23
SNFS Murphy score: 1.28e-19
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 8
SNFS skew: 1.30701

Identifiers

Target expression: 10^439-1
Target link: FactorDB page
Target ID: 1100000000013095691
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C336
Imported: Jun 03, 2026, 04:31 PM UTC

Raw pmain126 Factorization

(1) 2774877778471281360677.4420197369389321682193651680706705688987.221873542765174880268698440076944289246071.C336

SNFS Polynomial

Polynomial

Degree: 8
Murphy: 1.28e-19
Skew: 1.30701
Selected: Best

n: 408287845772759110667008015175613455371938326939055231426405050947457679426944661814636106946355537215156070930296736265064156224836356820901530587954916994052724447432467117000407029684661962428744803777544494522606137142964064911519450264787707816969824011620824916944644866706262821391619497319223094243507277242685473288509024539559
# 10^439-1, difficulty: 440.00, skewness: 1.33
# cost: 1.50539e+24, est. time: 716854201.54 GHz days (not accurate yet!)
# Optimized skew: 1.30701 Murphy: 1.28e-19
skew: 1.30701
c8: 1
c0: -10
Y1: -1
Y0: 10000000000000000000000000000000000000000000000000000000
type: snfs