6^439-1

Open composite · C293

NFS Planning

GNFS Murphy estimate: 2.26e-20
SNFS Murphy raw: 1.60e-16
SNFS Murphy normalized (deg 6): 1.00e-16
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 2.09643

Identifiers

Target expression: 6^439-1
Target link: FactorDB page
Target ID: 1100000000013095064
Target changed: Before 6/8/2026
Parent query: Same as target
Parent ID: -
Cofactor token: C293
Imported: Jun 07, 2026, 01:42 AM UTC

Raw pmain126 Factorization

(1) 1835047924377763291446064892740486974344122004429. C293

SNFS Polynomial

Polynomial

Degree: 7
Raw Murphy: 1.60e-16
Normalized (deg 6): 1.00e-16
Skew: 2.09643
Selected: Best

n: 44236575889885918413096869378920611221554456400802258836749316341560767387444364716460663241704481805670584698302216565390293903275139974554159602573873154615875120178731690593005782671993799088833672509141251088431722574116048171565349415528432584823062952425342106633254956584511532649530111
# 6^439-1, difficulty: 343.16, skewness: 1.67
# cost: 5.23659e+21, est. time: 2493615.68 GHz days (not accurate yet!)
# Optimized skew: 2.09643 Murphy: 1.60e-16
skew: 2.09643
c7: 1
c0: -36
Y1: -1
Y0: 10556714443828879617693714491135314434982743638016
type: snfs