Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 369: | \[{18^{369}-1\over17}\] | 73 × 991 × 34327 × 3811279 × 45457849 × 114341047 × 448890223 × 127317351152613439<18> × 1064115526969448071<19> × 3690199547499754891800937863511<31> × 394867037344695962525971723264825927<36> × 14153782597443172550196845634941164999799977<44> × [3182953358414242381180412803751800267036041177570360466576749309476260464648468708726024435910994425333586957325308605437644582781059293522752746488079291015419163147681387786507703283862339475168564554625902859819982106559923769681405561787800466575745779867810902372504355391<277>] |