Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 246: | \[{18^{246}-1\over17}\] | 73 × 19 × 83 × 307 × 23371 × 168347 × 3811279 × 4088521 × 32485777 × 114341047 × 448890223 × 4354359491<10> × 24997711153<11> × 1064115526969448071<19> × 101230436110007637061337<24> × 3690199547499754891800937863511<31> × 394867037344695962525971723264825927<36> × 14153782597443172550196845634941164999799977<44> × 8979874270786440832925188713345094433234077301096405993523514072256612632993279993<82> |