Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 95: | \[{28^{95}-1\over27}\] | 637421 × 21084187 × 5504044949138999959<19> × 18876519380766175812534662561<29> × 8010545589178234338619518726411686560584870675847476297867777517585821214661<76> |