Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
85: | \[{19^{85}-1\over18}\] | 151 × 911 × 3044803 × 12299588826871<14> × 99995282631947<14> × 4091790564972909948701<22> × 130300340509216473435163662875597224153175277491<48> |