6^437-1

Open composite · C273

NFS Planning

GNFS Murphy estimate: 3.27e-19
SNFS Murphy score: 1.72e-16
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 0.85844

Identifiers

Target expression: 6^437-1
Target link: FactorDB page
Target ID: 1100000000013095055
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C273
Imported: Jun 03, 2026, 04:31 PM UTC

Raw pmain126 Factorization

(1,19,23) 989723472495640900314985156529340457. C273

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 1.72e-16
Skew: 0.85844
Selected: Best

n: 118358658916374370557732383215649498305662440936088444393079532193401805481281001246359155145228782418708944987739976169397676106181200161392027670736677519650314046830264825452458696957328251164891299904017507570629611483847312169324027057151098688430382016420234089509763
# 6^437-1, difficulty: 341.26, skewness: 1.08
# cost: 4.64119e+21, est. time: 2210090.24 GHz days (not accurate yet!)
# Optimized skew: 0.85844 Murphy: 1.72e-16
skew: 0.85844
c7: 16
c0: -27
Y1: -3518904814609626539231238163711771478327581212672
Y0: 1
type: snfs