Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 168: | \[{5^{168}-1\over4}\] | 23 × 32 × 72 × 13 × 29 × 31 × 43 × 127 × 313 × 379 × 449 × 601 × 2521 × 6553 × 7603 × 19531 × 90217 × 390001 × 519499 × 234750601 × 24587411156281<14> × 59509429687890001<17> × 6019022585035590658668001<25> |