2LM

2^2582+1 M

Open composite · C360 · component M

NFS Planning

GNFS Murphy estimate: 2.94e-24
SNFS Murphy score: 3.11e-18
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 8
SNFS skew: 0.81611

Identifiers

Target expression: 2^1291+1+2^646
Target value: 42630890269345378639565784380883294366168114164804422882587084187253178612422083780658132753335599861114558930756735007913507087353132912263741057456854305844937234470458246536286959000213846223029237986091157960716132284361177214232245030134566949712004022179788125455048707068654154881024626497258311225075633506028140676293384823650020520548506204410567080704384452835740108482896986113
Target link: FactorDB page
Target ID: 1100000000001041574
Target changed: -
Parent query: 2^2582+1
Parent ID: -
Cofactor token: C360
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

199505629454028359771143201093. C360

SNFS Polynomial

Polynomial

Degree: 8
Murphy: 3.11e-18
Skew: 0.81611
Selected: Best

n: 213682643372069459542832967398039626779317649107945674209035365341013338540832348310025857532219152341589414510886021993238352108435511426456806895116202246709350211294721470787144841636787082547570451012114882169012946347823883076991144329366438285955846010598892276739288602091210587955583338995284068790173997944797807320148702469341019239649910472785824141
# 2^2582+1 Aurifeuillian M, difficulty: 388.63, skewness: 0.77
# cost: 8.30393e+22, est. time: 39542537.22 GHz days (not accurate yet!)
# Optimized skew: 0.81611 Murphy: 3.11e-18
skew: 0.81611
c8: 8
c4: 4
c0: 1
Y1: -1
Y0: 2923003274661805836407369665432566039311865085952
type: snfs