Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 285: | \[{13^{285}-1\over12}\] | 3 × 61 × 191 × 571 × 4651 × 27361 × 30941 × 161971 × 1531591 × 4986361 × 12865927 × 1363698781 × 5407272511<10> × 73247553601<11> × 796956375829<12> × 9468940004449<13> × 14654187650846568795703728901<29> × 1088816471246275799200290393190294011880450021667251<52> × 5665149551002469378124906493775113839759111608599508854624282853831<67> × 53849604474505057238382513688832576729081275563790721600672012321104381<71> |