Base 30 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 30: | \[{30^{30}-1\over29}\] | 72 × 11 × 13 × 19 × 31 × 67 × 271 × 4831 × 12211 × 71261 × 517831 × 837931 × 51941161 |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 30: | \[{30^{30}-1\over29}\] | 72 × 11 × 13 × 19 × 31 × 67 × 271 × 4831 × 12211 × 71261 × 517831 × 837931 × 51941161 |