Base 24 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
56: | \[{24^{56}-1\over23}\] | 52 × 29 × 239 × 577 × 28771 × 331777 × 8006209 × 97238233 × 183458857 × 374925097 × 166587177136355398930519489<27> |