6^515+1

Open composite · C306

NFS Planning

GNFS Murphy estimate: 3.99e-21
SNFS Murphy score: 2.50e-16
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 8
SNFS skew: 0.45103

Identifiers

Target expression: 6^515+1
Target link: FactorDB page
Target ID: 1100000000024623277
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C306
Imported: Jun 03, 2026, 04:31 PM UTC

Raw pmain126 Factorization

(1,5,103) 460067652721. C306

SNFS Polynomial

Polynomial

Degree: 8
Murphy: 2.50e-16
Skew: 0.45103
Selected: Best

n: 775852921736680826350940033539141119893416650434038574278883728266921687410782192370334852762512136003745894102494679859701372475072093505455641953552294176737048567410257084745980205565286538959819863756254660653350442079591373805287527598463536606898167337445580983383087694338645762709473353367114462551
# 6^515+1, difficulty: 320.60, skewness: 0.41
# cost: 1.22345e+21, est. time: 582594.48 GHz days (not accurate yet!)
# Optimized skew: 0.45103 Murphy: 2.50e-16
skew: 0.45103
c8: 1296
c6: -216
c4: 36
c2: -6
c0: 1
Y1: -1
Y0: 4849687664788584363858837602739217760256
type: snfs