10^421+1

Open composite · C413

NFS Planning

GNFS Murphy estimate: 2.48e-27
SNFS Murphy raw: 3.84e-19
SNFS Murphy normalized (deg 6): 2.40e-19
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.08854

Identifiers

Target expression: 10^421+1
Target link: FactorDB page
Target ID: 1000000000008550445
Target changed: Before 6/8/2026
Parent query: Same as target
Parent ID: -
Cofactor token: C413
Imported: Jun 07, 2026, 01:43 AM UTC

Raw pmain126 Factorization

(1) 9353779. C413

SNFS Polynomial

Polynomial

Degree: 7
Raw Murphy: 3.84e-19
Normalized (deg 6): 2.40e-19
Skew: 1.08854
Selected: Best

n: 97189692966971861416555908482647397475297514415393937670442171991759596940347950180446757498663471639741444704764877285523753651769077406138106417640496861312319962775570076106041302567754603878185587781249598788798720719284589780140295071212297287448303951901054205908746517413880626118161343229200829856137192348578142490955697254456290777332786129444677823894395079153667099779574748247837488025865365120440529
# 10^421+1, difficulty: 421.00, skewness: 1.39
# cost: 5.28559e+23, est. time: 251694745.13 GHz days (not accurate yet!)
# Optimized skew: 1.08854 Murphy: 3.84e-19
skew: 1.08854
c7: 1
c0: 10
Y1: -1000000000000000000000000000000000000000000000000000000000000
Y0: 1
type: snfs