5^538+1

Open composite · C369

NFS Planning

GNFS Murphy estimate: 8.84e-25
SNFS Murphy score: 1.34e-17
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.59331

Identifiers

Target expression: 5^538+1
Target link: FactorDB page
Target ID: 1000000000016637241
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C369
Imported: Jun 03, 2026, 04:31 PM UTC

Raw pmain126 Factorization

(2) 721997. C369

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 1.34e-17
Skew: 1.59331
Selected: Best

n: 592043465097787398499395377380792466778981012563579742522792973188540738916843154802041379077296600268154636922357943345882933360139955148948437015828329971118587945040877913385062997396281074261693834243722969430171088723969356338357980026529672571487463145124878680338605513297988476057304276541276806753664982615651845222796877914418108001721080063652591406586050133
# 5^538+1, difficulty: 376.74, skewness: 1.26
# cost: 4.11214e+22, est. time: 19581641.17 GHz days (not accurate yet!)
# Optimized skew: 1.59331 Murphy: 1.34e-17
skew: 1.59331
c7: 1
c0: 5
Y1: -1
Y0: 661744490042422139897126953655970282852649688720703125
type: snfs