7^470+1

Open composite · C256

NFS Planning

GNFS Murphy estimate: 3.17e-18
SNFS Murphy score: 2.72e-16
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 8
SNFS skew: 1.10563

Identifiers

Target expression: 7^470+1
Target link: FactorDB page
Target ID: 1000000000016828833
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C256
Imported: Jun 03, 2026, 04:31 PM UTC

Raw pmain126 Factorization

(2,10,94) 941.3761.148625151254595761.162593085601931791793042061094121.C256

SNFS Polynomial

Polynomial

Degree: 8
Murphy: 2.72e-16
Skew: 1.10563
Selected: Best

n: 1182402416487572590943789211052251698172742254871488897127689040494016311492416625578988402745205892409467077020158638136405406987135602967825288916831868565289040199143363339281672385373945836724099959790026311741506366093295948435029990812688459921570621
# 7^470+1, difficulty: 317.76, skewness: 1.00
# cost: 1.01438e+21, est. time: 483040.01 GHz days (not accurate yet!)
# Optimized skew: 1.10563 Murphy: 2.72e-16
skew: 1.10563
c8: 1
c6: -1
c4: 1
c2: -1
c0: 1
Y1: -1
Y0: 5243338316756303634461458718861951455543
type: snfs