5^547-1

Open composite · C283

NFS Planning

GNFS Murphy estimate: 8.60e-20
SNFS Murphy score: 8.73e-18
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 0.99289

Identifiers

Target expression: 5^547-1
Target link: FactorDB page
Target ID: 1000000000018437295
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C283
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(1) 5471.100649.8095303124840426000362564100269.183484028190522851295873025925493735425464992482102335139981.C283

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 8.73e-18
Skew: 0.99289
Selected: Best

n: 6634753924671282658728631769456120052813376989929214891512933492801283711952188489693176132130808950934010784249433462742871228023159639293182716368833420649944684791518167076118738820996759670832998479983202757497086261179906513915564266427172035589893042323940712365599620932260401
# 5^547-1, difficulty: 382.34, skewness: 1.26
# cost: 5.73299e+22, est. time: 27299957.40 GHz days (not accurate yet!)
# Optimized skew: 0.99289 Murphy: 8.73e-18
skew: 0.99289
c7: 1
c0: -5
Y1: -3308722450212110699485634768279851414263248443603515625
Y0: 1
type: snfs