Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 325: | \[{8^{325}-1\over7}\] | 31 × 79 × 151 × 601 × 1801 × 1951 × 7151 × 8191 × 100801 × 121369 × 10567201 × 51879585551<11> × 145295143558111<15> × 8837728285481551<16> × 26155966684789722885001<23> × 1663763381192308635718252801<28> × 134304196845099262572814573351<30> × 4613679391936953610429590532014122532260339739644049093601<58> × 4294500770439625509689707482842762056791217143467781867769939979855730352201<76> |