10^407+1

Open composite · C279

NFS Planning

GNFS Murphy estimate: 1.47e-19
SNFS Murphy raw: 1.15e-18
SNFS Murphy normalized (deg 6): 7.17e-19
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.09146

Identifiers

Target expression: 10^407+1
Target link: FactorDB page
Target ID: 1000000000008550431
Target changed: Before 6/8/2026
Parent query: Same as target
Parent ID: -
Cofactor token: C279
Imported: Jun 07, 2026, 01:43 AM UTC

Raw pmain126 Factorization

(1,11,37) 409038414731.84713181371149698699040859437321.219750014263062386251162088588835607771.C279

SNFS Polynomial

Polynomial

Degree: 7
Raw Murphy: 1.15e-18
Normalized (deg 6): 7.17e-19
Skew: 1.09146
Selected: Best

n: 144460357351215333887787961035821645272104393276359013852931528118514774673766710903957441649779055123590097657990585672714164412684141733896960011574379715381974332831321825982115791677086718314273567065065925807922825836324682071557048160872631916424177640048495502179360599291
# 10^407+1, difficulty: 407.00, skewness: 1.39
# cost: 2.39987e+23, est. time: 114279547.31 GHz days (not accurate yet!)
# Optimized skew: 1.09146 Murphy: 1.15e-18
skew: 1.09146
c7: 1
c0: 10
Y1: -10000000000000000000000000000000000000000000000000000000000
Y0: 1
type: snfs