3^878+1

Open composite · C398

NFS Planning

GNFS Murphy estimate: 1.84e-26
SNFS Murphy score: 4.58e-19
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.25506

Identifiers

Target expression: 3^878+1
Target link: FactorDB page
Target ID: 1000000000016447281
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C398
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(2) 162811001027713798229. C398

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 4.58e-19
Skew: 1.25506
Selected: Best

n: 50208575203966407072057646569031554222638863507383739919365207653698639932339931939556189908491099821229123122652028759117883482085865062714766645024173380765897192450168680019285524328711676213448141102277975395129960007755899873956799294874535718041905774888143891084164556528291312570522774998402153714805525301371637769446259616795816567903015060518479527903042995070789279071644918403141605301
# 3^878+1, difficulty: 418.91, skewness: 1.60
# cost: 4.70331e+23, est. time: 223966936.87 GHz days (not accurate yet!)
# Optimized skew: 1.25506 Murphy: 4.58e-19
skew: 1.25506
c7: 1
c0: 27
Y1: -436673502879206784130402698570834024654748577491697818855443
Y0: 1
type: snfs