10-

10^353-1

Open composite · C328

NFS Planning

GNFS Murphy estimate: 2.11e-22
SNFS Murphy score: 5.17e-17
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.06655

Identifiers

Target expression: 10^353-1
Target link: FactorDB page
Target ID: 1100000000013091448
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C328
Imported: Jun 03, 2026, 04:31 PM UTC

Raw pmain126 Factorization

(1) 1781225293.1044667255801249. C328

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 5.17e-17
Skew: 1.06655
Selected: Best

n: 5971186761077908392402271407138469531337493584613277755428999212784863535602930319390757965057266944400930822994221431803426200382259169609623749938890624018856064323434210138683794638398181555480636589432967847046558303900493221643545118097808466487261074656366822115475153656260621410869928975265101194270553763134331528776323
# 10^353-1, difficulty: 354.20, skewness: 1.34
# cost: 1.04442e+22, est. time: 4973451.39 GHz days (not accurate yet!)
# Optimized skew: 1.06655 Murphy: 5.17e-17
skew: 1.06655
c7: 16
c0: -125
Y1: -200000000000000000000000000000000000000000000000000
Y0: 1
type: snfs