Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 97: | \[{22^{97}-1\over21}\] | 31790035689729138497759<23> × 24574785145562161268612633946857000537795161196332530280482299809359831604354977876365777043959148426760349<107> |