Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
65: | \[{12^{65}-1\over11}\] | 131 × 22621 × 477517 × 20369233 × 1932288541 × 596827590710414051<18> × 38346067178495390031121<23> |