Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 122: | \[{9^{122}-1\over8}\] | 2 × 5 × 367 × 180317 × 603901 × 262199473 × 39504363995133913<17> × 105293313660391861035901<24> × 86630432442539925437931403<26> × 865923475887669700104067517<27> |