Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 204: | \[{5^{204}-1\over4}\] | 22 × 32 × 7 × 13 × 31 × 103 × 409 × 601 × 1973 × 3061 × 6733 × 8467 × 20129 × 45289 × 90271 × 317731 × 528667 × 4613053 × 19724557 × 34288117 × 41540861 × 466344409 × 12447002677<11> × 60119016343<11> × 654652168021<12> × 26837241260899651321<20> |