Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 156: | \[{17^{156}-1\over16}\] | 22 × 33 × 5 × 7 × 132 × 29 × 53 × 79 × 157 × 307 × 1249 × 65651 × 83233 × 212057 × 2001793 × 19825313 × 33610669 × 1224199237 × 2919196853 × 1837708051687<13> × 12042786858259<14> × 13938043025453<14> × 2035325753852213746064248693<28> × 3440101102267642724482132816887720451859561241574309<52> |