Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 125: | \[{31^{125}-1\over30}\] | 53 × 11 × 101 × 251 × 4951 × 17351 × 129001 × 12181751 × 13277801 × 20235942281002951<17> × 34869488656026169655830328179287001<35> × 3221875713010580184612256701786070501<37> × 617544845080849356257013429212774138527171353455186666026135501<63> |