Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 71: | \[{9^{71}-1\over8}\] | 853 × 2131 × 82219 × 3099719989 × 4052490063499<13> × 3754733257489862401973357979128773<34> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 71: | \[{9^{71}-1\over8}\] | 853 × 2131 × 82219 × 3099719989 × 4052490063499<13> × 3754733257489862401973357979128773<34> |