3^853+1

Open composite · C220

NFS Planning

GNFS Murphy estimate: 3.88e-16
SNFS Murphy score: 1.21e-18
Preferred method: GNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.49023

Identifiers

Target expression: 3^853+1
Target link: FactorDB page
Target ID: 1000000000016447131
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C220
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(1) 572027881891.99938469872158492354510033237033246753.281106735506999056822030721098179227979146887.468073599210887792870249817955636520478840547.894814071098246563930370745433648757820384093823.C220

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 1.21e-18
Skew: 1.49023
Selected: Best

n: 3583456922908890045025172224783416882182936435266750508631740494311293924449668612879836459889440734702825111700517394630823434632556494792011029864800269470658670331658402133557911670516684785872166402714432565211420301
# 3^853+1, difficulty: 407.46, skewness: 1.17
# cost: 2.4638e+23, est. time: 117323689.12 GHz days (not accurate yet!)
# Optimized skew: 1.49023 Murphy: 1.21e-18
skew: 1.49023
c7: 1
c0: 3
Y1: -1
Y0: 16173092699229880893718618465586445357583280647840659957609
type: snfs