2^1499-1

Open composite · C401

NFS Planning

GNFS Murphy estimate: 1.23e-26
SNFS Murphy raw: 3.87e-20
SNFS Murphy normalized (deg 6): 2.42e-20
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 0.85966

Identifiers

Target expression: 2^1499-1
Target link: FactorDB page
Target ID: 1000000000000001499
Target changed: Before 6/8/2026
Parent query: Same as target
Parent ID: -
Cofactor token: C401
Imported: Jun 07, 2026, 01:40 AM UTC

Raw pmain126 Factorization

2999.400453196195527405748338277279809339221225225247. C401

SNFS Polynomial

Polynomial

Degree: 7
Raw Murphy: 3.87e-20
Normalized (deg 6): 2.42e-20
Skew: 0.85966
Selected: Best

n: 14602770850746967338659159235932022736228025541917435121226838476073450492114654506287039010248209950135766648281643573449384772886318683601220694410186440071676618994977483451817372052734020692362721146457337981019129688419668932586716794829350556982860186052934790529055625318114109767133168949221376813697684740923742807521534490428840999622551757991363021269005105346370967242538502393222597493479
# 2^1499-1, difficulty: 451.24, skewness: 1.10
# cost: 2.7612e+24, est. time: 1314857072.81 GHz days (not accurate yet!)
# Optimized skew: 0.85966 Murphy: 3.87e-20
skew: 0.85966
c7: 1
c0: -2
Y1: -26328072917139296674479506920917608079723773850137277813577744384
Y0: 1
type: snfs