Base 9 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 51: | \[{9^{51}-1\over8}\] | 7 × 13 × 103 × 307 × 613 × 1021 × 1871 × 12853 × 30091 × 34511 × 129159847 × 99810171997<11> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 51: | \[{9^{51}-1\over8}\] | 7 × 13 × 103 × 307 × 613 × 1021 × 1871 × 12853 × 30091 × 34511 × 129159847 × 99810171997<11> |