Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 211: | \[{17^{211}-1\over16}\] | 841105081 × 1814080097 × 6418474738875457939770052209946421<34> × 2333531179130055668259334405713348047244800074799953<52> × 115252477217361685685439803894558368915447360751411685597819429367778190773511483393399310452873691681810818675387529910747451734958918086044560733500486847<156> |