3+

3^859+1

Open composite · C320

NFS Planning

GNFS Murphy estimate
6.15e-22
SNFS Murphy raw
8.98e-19
SNFS Murphy normalized (deg 6)
5.61e-19
Preferred method
SNFS
SNFS possible
Yes
SNFS degree
7
SNFS skew
1.74413

Identifiers

Target expression
3^859+1
Target link
FactorDB page
Target ID
1000000000016447167
Target changed
Before 6/8/2026
Parent query
Same as target
Parent ID
-
Cofactor token
C320
Imported
Jun 07, 2026, 01:42 AM UTC

Raw pmain126 Factorization

(1) 254267437.3368912101.213993301747.2137436242703584107976646414608669270217355693376568554481719.C320

SNFS Polynomial

Degree
7
Raw Murphy
8.98e-19
Normalized (deg 6)
5.61e-19
Skew
1.74413
Selected
Best
n: 44877022940779898800071047192295772642504847804985267799169781079463316548323454571681109377925321365881134733194085647960933454141870868841515998914813337672542954435164852367539201596689818926348961429420854864047648028214047020939225766056422830653555343457800459241763505260512489171115173154510634710827711932698387
# 3^859+1, difficulty: 410.80, skewness: 1.37
# cost: 2.97845e+23, est. time: 141830921.00 GHz days (not accurate yet!)
# Optimized skew: 1.74413 Murphy: 8.98e-19
skew: 1.74413
c7: 1
c0: 9
Y1: -1
Y0: 48519278097689642681155855396759336072749841943521979872827
type: snfs