6^493-1

Open composite · C276

NFS Planning

GNFS Murphy estimate: 2.19e-19
SNFS Murphy score: 2.10e-17
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 8
SNFS skew: 1.24058

Identifiers

Target expression: 6^493-1
Target link: FactorDB page
Target ID: 1100000000013095162
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C276
Imported: Jun 03, 2026, 04:31 PM UTC

Raw pmain126 Factorization

(1,17,29) 5774017.445977508157.418255211090238804537287.22468259187219501202920462874847.C276

SNFS Polynomial

Polynomial

Degree: 8
Murphy: 2.10e-17
Skew: 1.24058
Selected: Best

n: 140856575382435394764552273653753185341142074048474387776238173463535614676357682847504233386328062020454354054420345988151633963075464379926361612593063690233222581198885999012428096295182479539356042034818675508632456215407076170832973310168460543345909331962194760508842031
# 6^493-1, difficulty: 361.06, skewness: 1.00
# cost: 1.59338e+22, est. time: 7587510.12 GHz days (not accurate yet!)
# Optimized skew: 1.24058 Murphy: 2.10e-17
skew: 1.24058
c8: 1
c7: 1
c6: -7
c5: -6
c4: 15
c3: 10
c2: -10
c1: -4
c0: 1
Y1: -36845653286788892983296
Y0: 1357602166130257152481187563160405662935023617
type: snfs