Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 329: | \[{5^{329}-1\over4}\] | 659 × 6581 × 19531 × 15957217104409233285978673415179<32> × 177635683940025046467781066894531<33> × 3625663221570350634568091041714437127962087908478575591859134630145357912199<76> × 26260006083469442872923923961750824424140284684245157845565304492699971734367219<80> |