2LM

2^2926+1 L

Open composite · C293 · component L

NFS Planning

GNFS Murphy estimate: 2.26e-20
SNFS Murphy score: 3.52e-18
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 6
SNFS skew: 2.03549

Identifiers

Target expression: 2^1463+1-2^732
Target value: 255201754847323454651833075042529220762109732315954379912551652704066974187759640362179786364031091664605995223940681297967199854185091388020162695596843702135738250838251386190581271596481841308826421913837392854121247766014931824785640849523449896657693476576091838812252003810550772349919165842088172303608273453753659461342361220674198855210540233413091632790734243569602511838767614186280835212307311231842609474220340744835624454848513
Target link: FactorDB page
Target ID: 1100000000000329492
Target changed: -
Parent query: 2^2926+1
Parent ID: -
Cofactor token: C293
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(14L,22M,38M,154M,266M,418L) 1053361.13352648849.25198861836030037.C293

SNFS Polynomial

Polynomial

Degree: 6
Murphy: 3.52e-18
Skew: 2.03549
Selected: Best

n: 66709237109311394212768506913467753864017254130059322241971521407520414586426337082797737009863156524874990524271171956357472937568976324263037832389707862992644892022459034089236153075377985944605751202263455203034175880984000027156942240261874512472255777070564247307175641631432646758832557
# 2^2926+1 Aurifeuillian L, difficulty: 377.49, skewness: 1.41
# cost: 4.29948e+22, est. time: 20473702.92 GHz days (not accurate yet!)
# Optimized skew: 2.03549 Murphy: 3.52e-18
skew: 2.03549
c6: 1
c5: 2
c4: -10
c3: -20
c2: 16
c1: 32
c0: 8
Y1: -20282409603651670423947251286016
Y0: 822752278660603021077484591278675252491367932816789931674304513
type: snfs