7^485+1

Open composite · C247

NFS Planning

GNFS Murphy estimate: 1.05e-17
SNFS Murphy score: 9.18e-17
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 8
SNFS skew: 0.40133

Identifiers

Target expression: 7^485+1
Target link: FactorDB page
Target ID: 1000000000016828923
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C247
Imported: Jun 03, 2026, 04:31 PM UTC

Raw pmain126 Factorization

(1,5,97) 5821.850691.329909159249921531351.490084431988676932459730228559309143878843116401.C247

SNFS Polynomial

Polynomial

Degree: 8
Murphy: 9.18e-17
Skew: 0.40133
Selected: Best

n: 4700875569704088487435108583191641882692287692485623125028798528733796332840034124738772884675634002336201941185840559329452661605784642258959788014791951302190934580694215575754161453700842205420942321363545767019493620489915477049779156956620641
# 7^485+1, difficulty: 327.90, skewness: 0.38
# cost: 1.97103e+21, est. time: 938584.80 GHz days (not accurate yet!)
# Optimized skew: 0.40133 Murphy: 9.18e-17
skew: 0.40133
c8: 2401
c6: -343
c4: 49
c2: -7
c0: 1
Y1: -1
Y0: 36703368217294125441230211032033660188801
type: snfs