Base 30 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 73: | \[{30^{73}-1\over29}\] | 500606982978582492107<21> × 46553966886144767553457300054886195450891596608190571150141458684010906058037642911233<86> |