Base 30 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 61: | \[{30^{61}-1\over29}\] | 296217221 × 2935763471 × 6147298583195971<16> × 1811929227218224761617<22> × 4527324625128166146732398859621563<34> |