Base 24 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
57: | \[{24^{57}-1\over23}\] | 457 × 601 × 4219 × 112950414769<12> × 7282588256957615350925401<25> × 214357734059471372201905235580163<33> |