Base 24 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 61: | \[{24^{61}-1\over23}\] | 15739 × 1416951311 × 1858425216920537117<19> × 3111460356271636883680109<25> × 525673983970378861903974173<27> |