Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 519: | \[{5^{519}-1\over4}\] | 31 × 1039 × 3461 × 260539 × 1708272343265311<16> × 342781972692862973175024346994614988232301978189<48> × 32476046303866244983583302839571095930092323893040260065905210992495389657617639<80> × 339919831020187630960347957199421099342434386629129924807724899548171905079254114627192212342747249<99> × 775900333941720088728006288900406841365847216352829709350500630341932249100985661409839208013745053782590009<108> |