2^1439-1

Open composite · C380

NFS Planning

GNFS Murphy estimate: 2.04e-25
SNFS Murphy score: 1.88e-19
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 8
SNFS skew: 1.07653

Identifiers

Target expression: 2^1439-1
Target link: FactorDB page
Target ID: 1000000000000001439
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C380
Imported: Jun 03, 2026, 04:29 PM UTC

Raw pmain126 Factorization

2879.46049.172681.802732845007.70570366382050360064160741167. C380

SNFS Polynomial

Polynomial

Degree: 8
Murphy: 1.88e-19
Skew: 1.07653
Selected: Best

n: 11729079549037394609011577358814736020143537770303117760181389192964614431145628789804652524108667080339306235036563032247546208773547779586001391776310596421641182267922587432167451905407227671860721787214190363610504605089570848474581381839346312478667173155997107666937515818548898838948347524732279693908745357726265989023210073413741626626892104330528787471521452170574056473
# 2^1439-1, difficulty: 433.48, skewness: 1.09
# cost: 1.05463e+24, est. time: 502203596.69 GHz days (not accurate yet!)
# Optimized skew: 1.07653 Murphy: 1.88e-19
skew: 1.07653
c8: 1
c0: -2
Y1: -1
Y0: 1532495540865888858358347027150309183618739122183602176
type: snfs