3^835-1

Open composite · C266

NFS Planning

GNFS Murphy estimate: 8.33e-19
SNFS Murphy score: 2.30e-16
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 8
SNFS skew: 0.65135

Identifiers

Target expression: 3^835-1
Target link: FactorDB page
Target ID: 1000000000018247023
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C266
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(1,5,167) 573583211.6056215202595841844608656745169717582811971. C266

SNFS Polynomial

Polynomial

Degree: 8
Murphy: 2.30e-16
Skew: 0.65135
Selected: Best

n: 12399810624641111924238894550994723956749242101476964292639239147940646831322171158705644298255467865163558908132391237619298541048875510797487096408278316712991500723734093835752445157148170473236716903915155568463446240973990669735721005562770640128448572217102321
# 3^835-1, difficulty: 318.72, skewness: 0.58
# cost: 1.08081e+21, est. time: 514673.12 GHz days (not accurate yet!)
# Optimized skew: 0.65135 Murphy: 2.30e-16
skew: 0.65135
c8: 81
c6: 27
c4: 9
c2: 3
c0: 1
Y1: -1
Y0: 3990838394187339929534246675572349035227
type: snfs