2^1351-1

Open composite · C322

NFS Planning

GNFS Murphy estimate: 4.71e-22
SNFS Murphy score: 4.49e-17
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 6
SNFS skew: 1.41589

Identifiers

Target expression: 2^1351-1
Target link: FactorDB page
Target ID: 1000000000000001351
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C322
Imported: Jun 03, 2026, 04:29 PM UTC

Raw pmain126 Factorization

(7,193) 2023171960111.2812474579951. C322

SNFS Polynomial

Polynomial

Degree: 6
Murphy: 4.49e-17
Skew: 1.41589
Selected: Best

n: 5417636404801777155876218489953147312743756607566998300569673632744960300924861931724575238117948815598505004005825608361540015505775768692252170000699070152462020634559286278342488685877245834275552090875295132962112353632883871974955191724782398911667603015553341485498529536158090769600110154874380773639662550798569311
# 2^1351-1, difficulty: 348.59, skewness: 1.00
# cost: 7.36524e+21, est. time: 3507255.12 GHz days (not accurate yet!)
# Optimized skew: 1.41589 Murphy: 4.49e-17
skew: 1.41589
c6: 1
c5: 1
c4: 1
c3: 1
c2: 1
c1: 1
c0: 1
Y1: -1
Y0: 12554203470773361527671578846415332832204710888928069025792
type: snfs