Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 200: | \[{5^{200}-1\over4}\] | 23 × 3 × 11 × 13 × 41 × 71 × 101 × 241 × 251 × 313 × 401 × 521 × 1901 × 4001 × 9161 × 132001 × 239201 × 776401 × 9384251 × 424256201 × 632133361 × 50150933101<11> × 89620825374601<14> × 201729070811027930976007420652223887947601<42> |