2+(odd)

2^1129+1

Open composite · C330

NFS Planning

GNFS Murphy estimate: 1.62e-22
SNFS Murphy score: 2.04e-16
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 0.97069

Identifiers

Target expression: 2^1129+1
Target link: FactorDB page
Target ID: 1000000000012151153
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C330
Imported: Jun 03, 2026, 04:29 PM UTC

Raw pmain126 Factorization

(1) 5297035427. C330

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 2.04e-16
Skew: 0.97069
Selected: Best

n: 458892513311611318862984201501069942457179786568588804075167412025635930533809770818410850639079111982600041886624888697707009553774579797857587114117638074343969848233791460604242928670762668478286437918714706297417599902159815776851025710670579155082323836795917349333431519436377878444200603772226648632086166389434459119312473
# 2^1129+1, difficulty: 339.86, skewness: 1.22
# cost: 4.24861e+21, est. time: 2023149.70 GHz days (not accurate yet!)
# Optimized skew: 0.97069 Murphy: 2.04e-16
skew: 0.97069
c7: 1
c0: 4
Y1: -2923003274661805836407369665432566039311865085952
Y0: 1
type: snfs