11+

11^394+1

Open composite · C247

Target FactorDB

NFS Planning

GNFS Murphy estimate
1.05e-17
SNFS Murphy raw
7.72e-19
SNFS Murphy normalized (deg 6)
4.83e-19
Preferred method
GNFS
SNFS possible
Yes
SNFS degree
7
SNFS skew
1.55867

Identifiers

Target expression
11^394+1
Target link
FactorDB page
Target ID
1000000000017212377
Target changed
Before 6/8/2026
Parent query
Same as target
Parent ID
-
Cofactor token
C247
Imported
Jun 07, 2026, 01:43 AM UTC

Raw pmain126 Factorization

(2) 1511699201.196917186169128670603683745129681.78711359060495178599525200455016794486080115584128553117.32850802842645267279593052689032401595010167442171386433903608073.C247

SNFS Polynomial

Degree
7
Raw Murphy
7.72e-19
Normalized (deg 6)
4.83e-19
Skew
1.55867
Selected
Best
n: 2167832474836113556683738420276536614311546390413670108139932167814194781090845488482176002305518362286221365378632678273864096520861121953603070976325616659720319350395540788829067204657758041121869312964928586464963359316205558717020956723976941
# 11^394+1, difficulty: 410.31, skewness: 1.98
# cost: 2.89643e+23, est. time: 137925061.91 GHz days (not accurate yet!)
# Optimized skew: 1.55867 Murphy: 7.72e-19
skew: 1.55867
c7: 1
c0: 121
Y1: -20796505671840591460586660430317517562942313712635618374561
Y0: 1
type: snfs