Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 53: | \[{17^{53}-1\over16}\] | 4375997670680275555605273053<28> × 2336661313161818672990011193252900057<37> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 53: | \[{17^{53}-1\over16}\] | 4375997670680275555605273053<28> × 2336661313161818672990011193252900057<37> |