2LM

2^2946+1 M

Open composite · C296 · component M

NFS Planning

GNFS Murphy estimate: 1.52e-20
SNFS Murphy score: 7.29e-16
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 8
SNFS skew: 1.35161

Identifiers

Target expression: 2^1473+1+2^737
Target value: 261326596963659217563477068843549922060400365891537285030452892368964581568265871730872101236767837864556539109315257649118412650685533581332646600291167950986995968858369419459155222114797405500238256039769490282620157736256560111747517644138084193122174309606155890265872980427383502814354704713703215643717756584346761698559745619473582719721205121955652557526832356952993679250263417772737361854998435119766234311903801799905791971493412865
Target link: FactorDB page
Target ID: 1100000000001532326
Target changed: -
Parent query: 2^2946+1
Parent ID: -
Cofactor token: C296
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(2,982L) C296

SNFS Polynomial

Polynomial

Degree: 8
Murphy: 7.29e-16
Skew: 1.35161
Selected: Best

n: 40874809539271061742722513162994453833061401813718170449972167525114099546199331640705242812508151021914118044387008904030559376321251692472787859007733504495104592046686625006245430696914386097678165660752681099288573909989491830962931051484753868195211986680547319920034453519864290286961164289
# 2^2946+1 Aurifeuillian M, difficulty: 296.21, skewness: 1.19
# cost: 2.36832e+20, est. time: 112777.01 GHz days (not accurate yet!)
# Optimized skew: 1.35161 Murphy: 7.29e-16
skew: 1.35161
c8: 1
c6: 2
c4: 2
c2: 4
c0: 4
Y1: -1
Y0: 10633823966279326983230456482242756608
type: snfs