Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 405: | \[{13^{405}-1\over12}\] | 34 × 61 × 181 × 2161 × 4651 × 30941 × 161971 × 203311 × 650971 × 1609669 × 57583418699431<14> × 1102123844336048491<19> × 2997534286720771645924621<25> × 430119736863576885514326550014240994253359<42> × 364003636749512332994633571014911475374730785199054707304764450331867311<72> × [4090384163381624186431569173225413310455148895498579953571917278607433670116145773889448186838485424964776239909766542909518594672845940379310858654114815050742350512190887601631395795389657850216517509899956774717598338576422667786806062001<241>] |