11-

11^397-1

Open composite · C410

NFS Planning

GNFS Murphy estimate: 3.70e-27
SNFS Murphy score: 5.14e-19
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 2.52790

Identifiers

Target expression: 11^397-1
Target link: FactorDB page
Target ID: 1000000000019012395
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C410
Imported: Jun 03, 2026, 04:32 PM UTC

Raw pmain126 Factorization

(1) 2383. C410

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 5.14e-19
Skew: 2.52790
Selected: Best

n: 11370301098951417973789713110850411820329338813707961655334882281998725940241009082904839535491770234644583918760939911635846507040836440947657735661168221254957517732994417999557050038536004763408544159415272441969946072769863855010431823519519396427074935095196990017174299320077621292338614141194357970996344507605994545634894581115434168068062953238055062628946779359587469652050057677136520741273470463479
# 11^397-1, difficulty: 415.52, skewness: 1.98
# cost: 3.88683e+23, est. time: 185087015.88 GHz days (not accurate yet!)
# Optimized skew: 2.52790 Murphy: 5.14e-19
skew: 2.52790
c7: 1
c0: -121
Y1: -1
Y0: 228761562390246506066453264733492693192365450838991802120171
type: snfs