Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 212: | \[{12^{212}-1\over11}\] | 5 × 13 × 29 × 107 × 743 × 3181 × 8693 × 33073 × 35617 × 317789 × 1694941 × 29504677 × 77366539 × 3089222210773<13> × 11639817348279944053139101<26> × 1386570848451637577834086609<28> × 14861828970617714166257633556559606415803<41> × 125007519386543135662742553783099797796524671196112523802325299897569153<72> |