2LM

2^2402+1 L

Open composite · C231 · component L

NFS Planning

GNFS Murphy estimate: 8.93e-17
SNFS Murphy score: 1.42e-17
Preferred method: GNFS
SNFS possible: Yes
SNFS degree: 6
SNFS skew: 1.23717

Identifiers

Target expression: 2^1201+1-2^601
Target value: 34436958912771501236134755392105270967159849490897379843466473632801481382483491238794969074472092346572741838063923175577169854581633322049983219765457434689319006943311981761769351494008972485827017104022385670140389345644016653545985156217416551863847541735186068543331262967976826365821258943376930958809822601941926952034786804483263706508220219263025152001
Target link: FactorDB page
Target ID: 1100000000002325768
Target changed: -
Parent query: 2^2402+1
Parent ID: -
Cofactor token: C231
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

2786321.3693706423349.9085870150081.9994068731555721046090731424429370883894669053.132061713522817754830360428001900935327365946857205061.C231

SNFS Polynomial

Polynomial

Degree: 6
Murphy: 1.42e-17
Skew: 1.23717
Selected: Best

n: 279026520819236725888080795756770311784819986264011055701452502378498196387690888961304197548091518590872081883290180243342540680769265800773360377239391451569939836893160280231948850168385916319114041181062509255127796717738842653
# 2^2402+1 Aurifeuillian L, difficulty: 361.54, skewness: 0.89
# cost: 1.64037e+22, est. time: 7811288.63 GHz days (not accurate yet!)
# Optimized skew: 1.23717 Murphy: 1.42e-17
skew: 1.23717
c6: 2
c3: -2
c0: 1
Y1: -1
Y0: 1606938044258990275541962092341162602522202993782792835301376
type: snfs