Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 111: | \[{9^{111}-1\over8}\] | 7 × 13 × 223 × 18427 × 107671 × 13097927 × 18702169 × 25709599 × 56737873 × 78539161 × 119779213 × 17189128703<11> × 64326272436179833<17> × 6962353413269964253<19> |