Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 104: | \[{9^{104}-1\over8}\] | 23 × 5 × 17 × 41 × 53 × 193 × 1249 × 13729 × 398581 × 797161 × 475356961 × 2093124281 × 4795973261<10> × 37644053098601<14> × 780464337846444296785447886881<30> |