2LM

2^2414+1 M

Open composite · C249 · component M

Target FactorDB

NFS Planning

GNFS Murphy estimate
8.07e-18
SNFS Murphy score
1.20e-17
Preferred method
Similar
SNFS possible
Yes
SNFS degree
6
SNFS skew
1.23787

Identifiers

Target expression
2^1207+1+2^604
Target value
2203965370417376079112624345094737341898230367417432309981854312499294808478943439282878020766213910180655477636091083236938870693224532611198926064989275820116416444371966832753239093146816157955915120444165054416190663913474508737856649372570134773291086129824989944588249212896894387908232599689765846265583505819927660640202467897699814026705783850205020422145
Target link
FactorDB page
Target ID
1100000000004278288
Target changed
-
Parent query
2^2414+1
Parent ID
-
Cofactor token
C249
Imported
Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(2,34M,142M) 193606427517875265872957269.1180284982800257905437256426392372709820292425162622009759243037.C249

SNFS Polynomial

Degree
6
Murphy
1.20e-17
Skew
1.23787
Selected
Best
n: 155214410938718214926150186324616404248154235356102773857980165550461180712098584035759252225930535241916007687599649719507809227556960978140140064656283647132168276585145262692492342923480526183883137925729987999824341266974026591895796672293464037
# 2^2414+1 Aurifeuillian M, difficulty: 363.34, skewness: 0.89
# cost: 1.83175e+22, est. time: 8722636.28 GHz days (not accurate yet!)
# Optimized skew: 1.23787 Murphy: 1.20e-17
skew: 1.23787
c6: 2
c3: 2
c0: 1
Y1: -1
Y0: 3213876088517980551083924184682325205044405987565585670602752
type: snfs