Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 205: | \[{19^{205}-1\over18}\] | 151 × 821 × 911 × 1231 × 10654507 × 11713456133<11> × 11951068054199383402102234839038071<35> × 1652757117786646060164663068353081306379335841<46> × 2260918907553130630105975422714333971837828176296681275667953426617601288904848284503010380933395799269688986233822866697599337827950420295914750029961011<154> |