Base 11 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 405: | \[{11^{405}-1\over10}\] | 5 × 7 × 19 × 271 × 811 × 1621 × 3221 × 1772893 × 139026457 × 195019441 × 10729052022781<14> × 134570240062724701<18> × 5559917315850179173<19> × 14010692617072784593<20> × 732074897629320719491<21> × 9842332430037465033595921<25> × 88236431987113771637099217013<29> × 18577655567077510639504221043524968083010336371<47> × 3526176447682864910937934141934983258605489440194538631398471107422118591<73> × 33803317510449418699926421068290653774755219222310793139919953658446934315628725641093166145055167631985546231643971003111<122> |