3^779-1

Open composite · C310

NFS Planning

GNFS Murphy estimate: 2.34e-21
SNFS Murphy score: 1.82e-17
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.08263

Identifiers

Target expression: 3^779-1
Target link: FactorDB page
Target ID: 1000000000018246687
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C310
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(1,19,41) 1559.88558709567.130573980779749846379. C310

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 1.82e-17
Skew: 1.08263
Selected: Best

n: 1245311790953302214173163894714978715241665306836596833502037312932810332889294982833404114037473220580027910380148939332833950875889635670792161789125905422629301329461528331300965861260328671981852145085075451081212401394915429855382056330618113070387517013542254753832185138404738133862010671850781457999723
# 3^779-1, difficulty: 371.68, skewness: 1.37
# cost: 3.03509e+22, est. time: 14452798.21 GHz days (not accurate yet!)
# Optimized skew: 1.08263 Murphy: 1.82e-17
skew: 1.08263
c7: 1
c0: -9
Y1: -91297581665113611259115979754590511595360241199911147
Y0: 1
type: snfs