3^739-1

Open composite · C285

NFS Planning

GNFS Murphy estimate: 6.59e-20
SNFS Murphy score: 6.56e-17
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 2.01634

Identifiers

Target expression: 3^739-1
Target link: FactorDB page
Target ID: 1000000000018246447
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C285
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(1) 9735769273.813734950283.34025089913861723.335842527291577270615983746819.C285

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 6.56e-17
Skew: 2.01634
Selected: Best

n: 216166817449881851321523492091507946331350295171722841424891142835617664941151878644577088838495906261857926767344272340026741833978194535131517757936607842459334063864853475374529847682269183313731926181895054461540149247591806302600178522600973739469904123890914474122417097379049551
# 3^739-1, difficulty: 354.02, skewness: 1.60
# cost: 1.03283e+22, est. time: 4918249.12 GHz days (not accurate yet!)
# Optimized skew: 2.01634 Murphy: 6.56e-17
skew: 2.01634
c7: 1
c0: -27
Y1: -1
Y0: 375710212613636260325580163599137907799836383538729
type: snfs