12^395+1

Open composite · C276

NFS Planning

GNFS Murphy estimate: 2.19e-19
SNFS Murphy score: 4.37e-17
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 8
SNFS skew: 0.30292

Identifiers

Target expression: 12^395+1
Target link: FactorDB page
Target ID: 1100000000024338921
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C276
Imported: Jun 03, 2026, 04:32 PM UTC

Raw pmain126 Factorization

(1,5,79) 52018428481.20226989997375323545212241.22059627124963255254928201.C276

SNFS Polynomial

Polynomial

Degree: 8
Murphy: 4.37e-17
Skew: 0.30292
Selected: Best

n: 236386392631484506895296067639663273134174078695706612943657103922274783700825296281030600527526250869005072399428298547759033917061728708050695300588652921556138816459821116137585441488065003304106019539964946489629459743671214544936686165356048600691176824786979162458916821
# 12^395+1, difficulty: 341.02, skewness: 0.29
# cost: 4.57261e+21, est. time: 2177432.83 GHz days (not accurate yet!)
# Optimized skew: 0.30292 Murphy: 4.37e-17
skew: 0.30292
c8: 20736
c6: -1728
c4: 144
c2: -12
c0: 1
Y1: -1
Y0: 1224809639974238708818962962512535510581248
type: snfs