2^1339-1

Open composite · C350

NFS Planning

GNFS Murphy estimate: 1.12e-23
SNFS Murphy score: 5.68e-18
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 6
SNFS skew: 1.42212

Identifiers

Target expression: 2^1339-1
Target link: FactorDB page
Target ID: 1000000000000001339
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C350
Imported: Jun 03, 2026, 04:29 PM UTC

Raw pmain126 Factorization

(13,103) 2436553406461804657. C350

SNFS Polynomial

Polynomial

Degree: 6
Murphy: 5.68e-18
Skew: 1.42212
Selected: Best

n: 59287314617486384375205447365669824601745906052969955677552740156858837842635032051791085703971501249403851833519239093676331671000199995394185638777613169176275102724599452580833367585073662560861357592758467506313363660953278462102526782381439679116231425233829396830201595698457612378769003855026328680114856332402528538845717657771761640013733743
# 2^1339-1, difficulty: 372.07, skewness: 1.00
# cost: 3.10819e+22, est. time: 14800900.52 GHz days (not accurate yet!)
# Optimized skew: 1.42212 Murphy: 5.68e-18
skew: 1.42212
c6: 1
c5: 1
c4: -5
c3: -4
c2: 6
c1: 3
c0: -1
Y1: -10141204801825835211973625643008
Y0: 102844034832575377634685573909834406561420991602098741459288065
type: snfs