5^575+1

Open composite · C295

NFS Planning

GNFS Murphy estimate: 1.73e-20
SNFS Murphy score: 1.30e-16
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 8
SNFS skew: 0.47708

Identifiers

Target expression: 5^575+1
Target link: FactorDB page
Target ID: 1000000000016637463
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C295
Imported: Jun 03, 2026, 04:31 PM UTC

Raw pmain126 Factorization

(1,5,23,25,115) 16240908359201. C295

SNFS Polynomial

Polynomial

Degree: 8
Murphy: 1.30e-16
Skew: 0.47708
Selected: Best

n: 2169354584944314142930634504286711850432203968005769521077584342445734923187854677492857182617501041210060634751799135883751621843518878437110385390067172294716859926067078525855560294106127650159587223014634913352030420536131579299683987578417325246050060901351470775676659174579775397791330801
# 5^575+1, difficulty: 321.53, skewness: 0.45
# cost: 1.30037e+21, est. time: 619224.95 GHz days (not accurate yet!)
# Optimized skew: 0.47708 Murphy: 1.30e-16
skew: 0.47708
c8: 625
c6: -125
c4: 25
c2: -5
c0: 1
Y1: -1
Y0: 6938893903907228377647697925567626953125
type: snfs