Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 163: | \[{12^{163}-1\over11}\] | 3123955328977664272236491<25> × 3085088915212385601857770168909<31> × 55276244920832349213682617306044898442152509401<47> × 13760663909252798541286625152839847595459184536940409178506132713928843403<74> |