Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 430: | \[{8^{430}-1\over7}\] | 32 × 11 × 31 × 151 × 331 × 431 × 1033 × 1291 × 1721 × 9719 × 46441 × 2099863 × 9084611 × 731516431 × 1591582393 × 4175568751 × 514851898711<12> × 2932031007403<13> × 15686603697451<14> × 1728221461577944661374351<25> × 11053036065049294753459639<26> × 83212524822005103181053031<26> × 297927289744047764444862191<27> × 8510131405590136091948615255367876121<37> × 59904608378705661377430182608711698924130721<44> × 83861817871925183739792206470703862766563053456867813459969184678546547694793573468589875745315081<98> |