Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 79: | \[{22^{79}-1\over21}\] | 536009503964613991286957683005287140685493324523698332668846831791767500295593367113600925667991227216067<105> |