Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 230: | \[{8^{230}-1\over7}\] | 32 × 11 × 31 × 47 × 139 × 151 × 331 × 691 × 14951 × 178481 × 2796203 × 4036961 × 1884103651 × 168749965921<12> × 10052678938039<14> × 345767385170491<15> × 2646507710984041<16> × 74078343132499989110265409250618045323263715522281571<53> × 162383614111595675973306320509614573241829932932497191<54> |