6+

6^536+1

Open composite · C228

Target FactorDB

NFS Planning

GNFS Murphy estimate
1.33e-16
SNFS Murphy raw
4.83e-19
SNFS Murphy normalized (deg 6)
3.02e-19
Preferred method
GNFS
SNFS possible
Yes
SNFS degree
7
SNFS skew
1.37454

Identifiers

Target expression
6^536+1
Target link
FactorDB page
Target ID
1100000000011094519
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

(8) 61265623297.5336839745984177.973013850243368909487089.20813899604584385340830888828882497.663068862404519008671142581742828511766206801.259781095536964208305837680934352414245549494303955313.C228

SNFS Polynomial

Degree
7
Raw Murphy
4.83e-19
Normalized (deg 6)
3.02e-19
Skew
1.37454
Selected
Best
n: 640796705260203971508259781754322667576511220748455068433592414216818804189168974231866557481890643363422674191133832583456309268863307461870973785390477900021137138007036496759172105579793990685577523857265116039966001452813921
# 6^536+1, difficulty: 418.52, skewness: 1.08
# cost: 4.60116e+23, est. time: 219102641.68 GHz days (not accurate yet!)
# Optimized skew: 1.37454 Murphy: 4.83e-19
skew: 1.37454
c7: 16
c0: 27
Y1: -1
Y0: 413634051495409848452389993725550458861772622688892923936768
type: snfs