Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
77: | \[{12^{77}-1\over11}\] | 11 × 23 × 659 × 4621 × 4943 × 266981089 × 379101493 × 191199728567<12> × 50565974802015289<17> × 3049643652382570802424251<25> |