Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 292: | \[{18^{292}-1\over17}\] | 52 × 13 × 19 × 293 × 439 × 3797 × 239879 × 846217 × 44495837 × 118874953 × 279312893 × 288324889 × 536940143828660069022493<24> × 236207615123460333079655688722312347337<39> × 239560437299594270561494729006400795838750182585371182921815375952671<69> × 11326139330679455900010441672352751505434788053182439290719646925489391720739928056378657<89> × 2270592879503055132796830122631138446536900405466355275206194664966635063857148212298893851<91> |