Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 84: | \[{5^{84}-1\over4}\] | 22 × 32 × 72 × 13 × 29 × 31 × 43 × 127 × 379 × 449 × 601 × 2521 × 7603 × 19531 × 519499 × 234750601 × 24587411156281<14> |