Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 217: | \[{9^{217}-1\over8}\] | 547 × 683 × 1093 × 1303 × 6883 × 20399 × 89839 × 102673 × 174469 × 4404047 × 35258161 × 22434744889<11> × 24040333283<11> × 1023879682351<13> × 70961158264970285776591<23> × 20545698698839917414079969<26> × 1940480029609649121651152163853<31> × 5042697757897197583937774496999119335532852173<46> |