5^529-1

Open composite · C281

NFS Planning

GNFS Murphy estimate: 1.12e-19
SNFS Murphy score: 1.63e-17
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 2.51851

Identifiers

Target expression: 5^529-1
Target link: FactorDB page
Target ID: 1000000000018437187
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C281
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(1,23) 19160381.88498957988663171.10632314223454010047679.578185738195950240627076781.C281

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 1.63e-17
Skew: 2.51851
Selected: Best

n: 45791483978387935872572593841070486184138067842964937602666904853247684139523774320754922666347777244034442787713843966883264781939844602460852540770711095243277827189200134363970684176720493436464091680595156412791578285476265146230605988819768977229544532908213639779659999700599
# 5^529-1, difficulty: 371.85, skewness: 1.99
# cost: 3.06714e+22, est. time: 14605421.47 GHz days (not accurate yet!)
# Optimized skew: 2.51851 Murphy: 1.63e-17
skew: 2.51851
c7: 1
c0: -125
Y1: -1
Y0: 132348898008484427979425390731194056570529937744140625
type: snfs