2+(odd)

2^1433+1

Open composite · C431

NFS Planning

GNFS Murphy estimate: 2.24e-28
SNFS Murphy score: 1.78e-19
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.55997

Identifiers

Target expression: 2^1433+1
Target link: FactorDB page
Target ID: 1000000000012151457
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C431
Imported: Jun 03, 2026, 04:29 PM UTC

Raw pmain126 Factorization

(1) C431

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 1.78e-19
Skew: 1.55997
Selected: Best

n: 79225051790265818018414413880100231854279132037098947885307065119366774393791842076362354793905929868608090785624050006881107841365378160035909059021883862135229710128857253178513693187535380730041123279009446766886005733350615791495697208095441458838282892911050199725004596411488397435430998830645087966881581090264529992058030393889227099777793871996371452325073055756952415929839122434460185404048577936201924850630020280527531
# 2^1433+1, difficulty: 431.98, skewness: 1.22
# cost: 9.70967e+23, est. time: 462365381.61 GHz days (not accurate yet!)
# Optimized skew: 1.55997 Murphy: 1.78e-19
skew: 1.55997
c7: 1
c0: 4
Y1: -1
Y0: 51422017416287688817342786954917203280710495801049370729644032
type: snfs