2LM

2^2930+1 M

Open composite · C280 · component M

NFS Planning

GNFS Murphy estimate: 1.28e-19
SNFS Murphy score: 2.94e-17
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 8
SNFS skew: 0.76021

Identifiers

Target expression: 2^1465+1+2^733
Target value: 1020807019389293818607332300170116883048438929263817519650206610816267896751038561448719145456124366658423980895762725191868799416740365552080650782387374808542953003353005544762325086385927365235305687655349571416484991199612397317137003251651024012452911347169355124124729200045495770808980520705880684696381301586054492448466988800328631170760410495815132017237485221651823156033282847915497128335568724577139768637234617963399955374669825
Target link: FactorDB page
Target ID: 1100000000004488944
Target changed: -
Parent query: 2^2930+1
Parent ID: -
Cofactor token: C280
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(2,10L,586L) 9074186120501.167146128160133267816316170869278205356834103597062554689301.C280

SNFS Polynomial

Polynomial

Degree: 8
Murphy: 2.94e-17
Skew: 0.76021
Selected: Best

n: 8458257648746292713177239109212203269761661676555955068795458158779451113456483291108870720541651994037728486014479166737291471054977421789386869686012626233663967734904585237503996639208185198097517118462682607241810356312225683505233042169068775427361194916620830705303187972501
# 2^2930+1 Aurifeuillian M, difficulty: 352.81, skewness: 0.71
# cost: 9.57744e+21, est. time: 4560685.72 GHz days (not accurate yet!)
# Optimized skew: 0.76021 Murphy: 2.94e-17
skew: 0.76021
c8: 16
c7: 16
c6: 8
c4: -4
c2: 2
c1: 2
c0: 1
Y1: -1
Y0: 89202980794122492566142873090593446023921664
type: snfs