5+

5^595+1

Open composite · C228

Target FactorDB

NFS Planning

GNFS Murphy estimate
1.33e-16
SNFS Murphy raw
6.58e-17
SNFS Murphy normalized (deg 6)
2.57e-17
Preferred method
GNFS
SNFS possible
Yes
SNFS degree
8
SNFS skew
0.47104

Identifiers

Target expression
5^595+1
Target link
FactorDB page
Target ID
1000000000016637583
Target changed
Before 6/8/2026
Parent query
Same as target
Parent ID
-
Cofactor token
C228
Imported
Jun 07, 2026, 01:42 AM UTC

Raw pmain126 Factorization

(1,5,7,17,35,85,119) 207081881170736963512781627007517535232301. C228

SNFS Polynomial

Degree
8
Raw Murphy
6.58e-17
Normalized (deg 6)
2.57e-17
Skew
0.47104
Selected
Best
n: 102165162092921146204490923794633635296387251952010002484921869967019630181134100702735613644794778531305006887536361806208418283147646177214819229951734231167580547677254274917766199472941647506349982656966163926871381815437221
# 5^595+1, difficulty: 332.71, skewness: 0.45
# cost: 2.68966e+21, est. time: 1280792.32 GHz days (not accurate yet!)
# Optimized skew: 0.47104 Murphy: 6.58e-17
skew: 0.47104
c8: 625
c6: -125
c4: 25
c2: -5
c0: 1
Y1: -1
Y0: 173472347597680709441192448139190673828125
type: snfs