3^853-1

Open composite · C330

NFS Planning

GNFS Murphy estimate: 1.62e-22
SNFS Murphy score: 1.21e-18
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.49023

Identifiers

Target expression: 3^853-1
Target link: FactorDB page
Target ID: 1000000000018247131
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C330
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(1) 2000634731.10373850001634662511.2427418127385003389186852672165977574895685377791.C330

SNFS Polynomial

Polynomial

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

n: 957520148623385906975848156747951193138369561637231243339289174204523631330606985184312350102869030547155150609206060981964166685149819513090406565289543608214191343635425415132335832716000082525949267058234057716072356490590121208646933893359955547381076160098328604755469335866197488705249904055941879544360726471706415546725531
# 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