2^1439-1

Open composite · C380

NFS Planning

GNFS Murphy estimate: 2.04e-25
SNFS Murphy raw: 1.49e-19
SNFS Murphy normalized (deg 6): 9.29e-20
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.72280

Identifiers

Target expression: 2^1439-1
Target link: FactorDB page
Target ID: 1000000000000001439
Target changed: Before 6/8/2026
Parent query: Same as target
Parent ID: -
Cofactor token: C380
Imported: Jun 07, 2026, 01:40 AM UTC

Raw pmain126 Factorization

2879.46049.172681.802732845007.70570366382050360064160741167. C380

SNFS Polynomial

Polynomial

Degree: 7
Raw Murphy: 1.49e-19
Normalized (deg 6): 9.29e-20
Skew: 1.72280
Selected: Best

n: 11729079549037394609011577358814736020143537770303117760181389192964614431145628789804652524108667080339306235036563032247546208773547779586001391776310596421641182267922587432167451905407227671860721787214190363610504605089570848474581381839346312478667173155997107666937515818548898838948347524732279693908745357726265989023210073413741626626892104330528787471521452170574056473
# 2^1439-1, difficulty: 434.09, skewness: 1.35
# cost: 1.09002e+24, est. time: 519058837.82 GHz days (not accurate yet!)
# Optimized skew: 1.72280 Murphy: 1.49e-19
skew: 1.72280
c7: 1
c0: -8
Y1: -1
Y0: 102844034832575377634685573909834406561420991602098741459288064
type: snfs