Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 355: | \[{18^{355}-1\over17}\] | 41 × 569 × 2711 × 171677613761<12> × 23821298356519<14> × 15264389634819563580641951<26> × 8313279867213693856690162577<28> × 77592105510933744947332500871<29> × 404888252726379587195529885794129<33> × [2387707342676670533226377838355515710503781995832917585076703589344952138222124767905029316852264748897201964993039642312939652630079262502626230118947184129421142177031017528461529925362830865393082625317749468278482827279236189522894199616098975743948038761722077139691465284292376273874764422631<298>] |