Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 194: | \[{18^{194}-1\over17}\] | 19 × 3881 × 11059 × 11299071543690131<17> × 130958018700810567361260919261914712849<39> × 6682028674792021850499658634432979974620281094975260236296555044282940787318279<79> × 24317603751712749635475135065385713108463798602853624073122980303672606287841053760718599828659466819<101> |