Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 156: | \[{8^{156}-1\over7}\] | 33 × 5 × 132 × 19 × 37 × 53 × 73 × 79 × 109 × 157 × 313 × 937 × 1249 × 1613 × 2731 × 3121 × 6553 × 7489 × 8191 × 21061 × 21841 × 86113 × 121369 × 348661 × 22366891 × 7830118297<10> × 1112388285061<13> × 370244405487013669<18> × 5302306226370307681801<22> |