7^422+1

Open composite · C331

NFS Planning

GNFS Murphy estimate: 1.41e-22
SNFS Murphy score: 5.58e-17
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.38389

Identifiers

Target expression: 7^422+1
Target link: FactorDB page
Target ID: 1000000000016828545
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C331
Imported: Jun 03, 2026, 04:31 PM UTC

Raw pmain126 Factorization

(2) 990013.3481024039639480421. C331

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 5.58e-17
Skew: 1.38389
Selected: Best

n: 2483447375986889649498680895260566911822986632077259801487990335218398392526828482294692627898527557533430434660871454232478278769516038005829364090386705907339284773230717695898228232318076230019697212757528938846839027144598135211495618342942006566628365816419995220383041126219812023660521300318836348764112182003070881164721057
# 7^422+1, difficulty: 356.63, skewness: 1.74
# cost: 1.21351e+22, est. time: 5778632.17 GHz days (not accurate yet!)
# Optimized skew: 1.38389 Murphy: 5.58e-17
skew: 1.38389
c7: 1
c0: 49
Y1: -508021860739623365322188197652216501772434524836001
Y0: 1
type: snfs