Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 119: | \[{15^{119}-1\over14}\] | 7 × 239 × 953 × 1743463 × 1045002649 × 6734509609<10> × 54828245908127393269<20> × 6002089885168243417019997239237162279316530053752412376566490597702105104474079032397707<88> |