Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 200: | \[{18^{200}-1\over17}\] | 54 × 11 × 13 × 19 × 41 × 101 × 113 × 401 × 881 × 929 × 1201 × 2711 × 9041 × 15101 × 18401 × 32801 × 102701 × 145501 × 602401 × 738851 × 1437058645425001<16> × 137841514501966721<18> × 246054241904217701<18> × 17254127651933924651<20> × 21162386787273369601<20> × 805217720850532562802175241136805945045041580892773033940529705819970214854195800621715757663201<96> |