Base 30 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 74: | \[{30^{74}-1\over29}\] | 31 × 149 × 223 × 1259 × 9473 × 190181 × 197643419 × 223855477 × 1447418949456775608391951<25> × 4673016293261684390446904937094157950067612234753<49> |