3^869-1

Open composite · C321

NFS Planning

GNFS Murphy estimate: 5.38e-22
SNFS Murphy score: 6.93e-19
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 0.91721

Identifiers

Target expression: 3^869-1
Target link: FactorDB page
Target ID: 1000000000018247227
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C321
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(1,11,79) 1409519.8031299.16519691.8531666877739494773879494357921.C321

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 6.93e-19
Skew: 0.91721
Selected: Best

n: 596481989981757083129796279877931836229384173745578278579164281720430754340887671280871141717808405685986854470950354088458758328503204323079953502389117979535385971211180053288721522609410849329861165934951692557092066747312563004567811996210152379305887325387628452298576474700848352086314119810835598109244583056042039
# 3^869-1, difficulty: 414.62, skewness: 1.17
# cost: 3.69532e+23, est. time: 175967690.20 GHz days (not accurate yet!)
# Optimized skew: 0.91721 Murphy: 6.93e-19
skew: 0.91721
c7: 1
c0: -3
Y1: -145557834293068928043467566190278008218249525830565939618481
Y0: 1
type: snfs