Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 116: | \[{5^{116}-1\over4}\] | 22 × 3 × 13 × 59 × 35671 × 5096867 × 6090817323763<13> × 22125996444329<14> × 1334402673828313149547634216455312875601<40> |