Base 26 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 63: | \[{26^{63}-1\over25}\] | 19 × 37 × 127 × 337 × 90847 × 3083473 × 308933353 × 321272407 × 2997305809 × 25460272531<11> × 87158329476077118485754807583501<32> |