Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 301: | \[{7^{301}-1\over6}\] | 29 × 4733 × 4817 × 166003607842448777<18> × 2192537062271178641<19> × 219516040470409575257<21> × 58628254861045912568724329431228508415599499441292512521<56> × 3748787688169844402513004599633138785431253179050314600655297<61> × 3400314617840334400147733516194080817785199116016553631046255177823161633<73> |