Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
58: | \[{12^{58}-1\over11}\] | 13 × 59 × 24767 × 368939 × 1402596253 × 3335672988472972523<19> × 1084876017544880450377<22> |