10^400+1

Open composite · C306

NFS Planning

GNFS Murphy estimate: 3.99e-21
SNFS Murphy score: 2.37e-16
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 8
SNFS skew: 1.10453

Identifiers

Target expression: 10^400+1
Target link: FactorDB page
Target ID: 1000000000008550424
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C306
Imported: Jun 03, 2026, 04:32 PM UTC

Raw pmain126 Factorization

(16,80) 4801.43201.980801. C306

SNFS Polynomial

Polynomial

Degree: 8
Murphy: 2.37e-16
Skew: 1.10453
Selected: Best

n: 491579308413397346910103816732681340178537015070798304129733339284206707248104237249409112100054848287783720360841991572066781432552711971879206751983942005499870739808754513168090478251794250543966639071707584074774964450869156296579701488865108670349605482137501507474442144751154352482759628361158651201
# 10^400+1, difficulty: 320.00, skewness: 1.00
# cost: 1.17621e+21, est. time: 560100.42 GHz days (not accurate yet!)
# Optimized skew: 1.10453 Murphy: 2.37e-16
skew: 1.10453
c8: 1
c6: -1
c4: 1
c2: -1
c0: 1
Y1: -1
Y0: 10000000000000000000000000000000000000000
type: snfs