Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 242: | \[{12^{242}-1\over11}\] | 112 × 13 × 23 × 727 × 7019 × 9888121 × 266981089 × 9971358563<10> × 13448069471<11> × 57154490053<11> × 353182139722763737<18> × 2394580881055996074990901<25> × 36801041190212623908408703917306494049155113<44> × 134584409757064878915359991836917880675451536595733<51> × 8434525161836660858813604742711726373579847789337265768640955235323<67> |