7^442+1

Open composite · C261

NFS Planning

GNFS Murphy estimate: 1.62e-18
SNFS Murphy score: 6.89e-17
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 6
SNFS skew: 1.41347

Identifiers

Target expression: 7^442+1
Target link: FactorDB page
Target ID: 1000000000016828665
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C261
Imported: Jun 03, 2026, 04:31 PM UTC

Raw pmain126 Factorization

(2,26,34) 21070462943384603113.270824384672801497805557210454463927666362513.C261

SNFS Polynomial

Polynomial

Degree: 6
Murphy: 6.89e-17
Skew: 1.41347
Selected: Best

n: 588924262861875799322226221050425432174040307050019578899852017213128269906976501404656482643698735425358931898138012393289641867005605116359063764879055658558159640783725711444642012930291535647792393758406927363547835427483546433360005235761043018953747033929
# 7^442+1, difficulty: 344.80, skewness: 1.00
# cost: 5.80531e+21, est. time: 2764434.28 GHz days (not accurate yet!)
# Optimized skew: 1.41347 Murphy: 6.89e-17
skew: 1.41347
c6: 1
c5: -1
c4: -5
c3: 4
c2: 6
c1: -3
c0: -1
Y1: -54116956037952111668959660849
Y0: 2928644930813641516032715844013695341634232321209103400802
type: snfs