3^883-1

Open composite · C366

NFS Planning

GNFS Murphy estimate: 1.32e-24
SNFS Murphy score: 4.10e-19
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 0.91605

Identifiers

Target expression: 3^883-1
Target link: FactorDB page
Target ID: 1000000000018247311
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C366
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(1) 8831.83003.1407503.54495229.253082356268390654593473426449771. C366

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 4.10e-19
Skew: 0.91605
Selected: Best

n: 698014697404145830501319075326751486618661936356615791155608436915091439810973325062972175701612932596727156211136398906143507787978471841633047714880188449138270146146626308584572064302152554191312256208748836017091564224090010612712088598948229216489023623863794952528500382749194422927106553786073588680180222729364623056423652967369879105736945916770694415275033
# 3^883-1, difficulty: 421.30, skewness: 1.17
# cost: 5.37426e+23, est. time: 255917249.52 GHz days (not accurate yet!)
# Optimized skew: 0.91605 Murphy: 4.10e-19
skew: 0.91605
c7: 1
c0: -3
Y1: -1310020508637620352391208095712502073964245732475093456566329
Y0: 1
type: snfs