Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 207: | \[{17^{207}-1\over16}\] | 19 × 47 × 307 × 829 × 1657 × 1270657 × 25225573 × 9559382330644273<16> × 26552618219228090162977481<26> × 5385687325711213602812791946461<31> × 1911138568186474712619823209506668995755827185450440799436807353574732563047639988047481705912136110318939144551545512799632284165197149949752904976075377693<157> |