5^559-1

Open composite · C252

NFS Planning

GNFS Murphy estimate: 5.40e-18
SNFS Murphy score: 1.62e-17
Preferred method: Similar
SNFS possible: Yes
SNFS degree: 6
SNFS skew: 1.41856

Identifiers

Target expression: 5^559-1
Target link: FactorDB page
Target ID: 1000000000018437367
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C252
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(1,13,43) 5591.2699971.459873080187998548241.625847748818931518709692363671.21053341525993764193934968716700238510029.C252

SNFS Polynomial

Polynomial

Degree: 6
Murphy: 1.62e-17
Skew: 1.41856
Selected: Best

n: 166992075745752085508018436982478489467608218010296492538162756971672496746892331915049553216381058224606873095101065908672646798791912321634065324385377642285416699931267759374080936717198086903351985923164767385515839984133255553648835107219263398119
# 5^559-1, difficulty: 360.67, skewness: 1.00
# cost: 1.55541e+22, est. time: 7406731.42 GHz days (not accurate yet!)
# Optimized skew: 1.41856 Murphy: 1.62e-17
skew: 1.41856
c6: 1
c5: 1
c4: -5
c3: -4
c2: 6
c1: 3
c0: -1
Y1: -1136868377216160297393798828125
Y0: 1292469707114105741986576081359316958696581423282623291015626
type: snfs