2+(odd)

2^1159+1

Open composite · C318

NFS Planning

GNFS Murphy estimate: 8.03e-22
SNFS Murphy score: 9.67e-17
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.69379

Identifiers

Target expression: 2^1159+1
Target link: FactorDB page
Target ID: 1000000000012151183
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C318
Imported: Jun 03, 2026, 04:29 PM UTC

Raw pmain126 Factorization

(1,19,61) 117466969. C318

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 9.67e-17
Skew: 1.69379
Selected: Best

n: 165413132066198451903610295674123657175970171831836304275098667599150045572113232825393942152992920221808370003805339436442655078057134659377522631710931891569845302127841071305218842686417056871490579463190639250491074177175020018503152415218239814885086605508053316407030224580314319148983454617780316690573429985979
# 2^1159+1, difficulty: 349.80, skewness: 1.35
# cost: 7.94073e+21, est. time: 3781298.51 GHz days (not accurate yet!)
# Optimized skew: 1.69379 Murphy: 9.67e-17
skew: 1.69379
c7: 1
c0: 8
Y1: -1
Y0: 93536104789177786765035829293842113257979682750464
type: snfs