Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 242: | \[{19^{242}-1\over18}\] | 22 × 5 × 23 × 3631 × 4357 × 104281 × 242243 × 809491 × 62060021 × 5826560917<10> × 253239693257<12> × 3428390992571161<16> × 73653951106215688253<20> × 13843334517406473243713891<26> × 7282485617590212016546578504741434383328384749971781<52> × 460146480715059821101883795966520324636372176593880537649741625881183995518310865131946832581623027411931312841944434139412598418555717863911<141> |