Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 64: | \[{12^{64}-1\over11}\] | 5 × 13 × 17 × 29 × 89 × 97 × 233 × 769 × 153953 × 260753 × 1200913648289<13> × 44450180997616192602560262634753<32> |