Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 52: | \[{17^{52}-1\over16}\] | 22 × 32 × 5 × 29 × 53 × 79 × 65651 × 212057 × 2001793 × 19825313 × 1224199237 × 2919196853 × 13938043025453<14> |