Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 231: | \[{19^{231}-1\over18}\] | 3 × 67 × 127 × 701 × 2113 × 54979 × 70841 × 73613 × 104281 × 30640261 × 34451077 × 62060021 × 68443621 × 7302593769703<13> × 160498721683663426603<21> × 290231135192356844734566736111<30> × 683565986584949943193098665649843330062157179334638625282436350819956477<72> × 1162619152496372669143000148469370762465091569231122879338323966696358157188929035915562436247006943<100> |