Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 50: | \[{9^{50}-1\over8}\] | 2 × 53 × 112 × 61 × 101 × 151 × 1181 × 8951 × 391151 × 394201 × 22996651 × 61070817601<11> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 50: | \[{9^{50}-1\over8}\] | 2 × 53 × 112 × 61 × 101 × 151 × 1181 × 8951 × 391151 × 394201 × 22996651 × 61070817601<11> |