Base 29 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 63: | \[{29^{63}-1\over28}\] | 7 × 13 × 67 × 6637 × 14437 × 41203 × 88009573 × 51473298317533<14> × 52012313485270741<17> × 851537828235200528486153168592744421<36> |