2LM

2^2918+1 M

Open composite · C306 · component M

NFS Planning

GNFS Murphy estimate: 3.99e-21
SNFS Murphy score: 1.12e-19
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 8
SNFS skew: 0.72919

Identifiers

Target expression: 2^1459+1+2^730
Target value: 15950109677957715915739567190158076297631858269747148744534478294004185886734977522636236647751943229037874701496292581122949990886568211751260168474802731383483640677390711636911329474780115081801651369614837053382577992435968135819646295467987724052675500664390519554709561946664250428604523768126760533660319578934596143578561322002128873758900929284295596115803611440465423066913204593432853632349388183748982401532169993638552442765313
Target link: FactorDB page
Target ID: 1100000000003217992
Target changed: -
Parent query: 2^2918+1
Parent ID: -
Cofactor token: C306
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

2616957249764352676829.91040694459592197376675258809938836789105619369.273792660376775714940830007895263871899848267088332861675638996001.C306

SNFS Polynomial

Polynomial

Degree: 8
Murphy: 1.12e-19
Skew: 0.72919
Selected: Best

n: 244517350919850782727838773762267847356391920543425154626143589628214462769362515588925332115008954102649873576929277620813341261416137961934606400571639632515254840227331159986251581278190072043472742565471236585320637478780316349123040818615465629364129434869811882441951160581392792261721529525707265613
# 2^2918+1 Aurifeuillian M, difficulty: 439.20, skewness: 0.77
# cost: 1.44151e+24, est. time: 686433014.06 GHz days (not accurate yet!)
# Optimized skew: 0.72919 Murphy: 1.12e-19
skew: 0.72919
c8: 8
c4: 4
c0: 1
Y1: -1
Y0: 6129982163463555433433388108601236734474956488734408704
type: snfs