3^815+1

Open composite · C293

NFS Planning

GNFS Murphy estimate: 2.26e-20
SNFS Murphy score: 3.07e-16
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 8
SNFS skew: 0.63130

Identifiers

Target expression: 3^815+1
Target link: FactorDB page
Target ID: 1000000000016446903
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C293
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(1,5,163) 104782195501614691. C293

SNFS Polynomial

Polynomial

Degree: 8
Murphy: 3.07e-16
Skew: 0.63130
Selected: Best

n: 18942650578900019232643986769388559040386786687830483059952557652966476172254116770234111363858300661098244725638475551849580830494765188935627533577334808481907806505702872516170435356340150169340780137877243901863412443038120832428061229057704453858365511162379919714746169202522958895454011
# 3^815+1, difficulty: 311.08, skewness: 0.58
# cost: 6.50608e+20, est. time: 309813.45 GHz days (not accurate yet!)
# Optimized skew: 0.63130 Murphy: 3.07e-16
skew: 0.63130
c8: 81
c6: -27
c4: 9
c2: -3
c0: 1
Y1: -1
Y0: 443426488243037769948249630619149892803
type: snfs