Lucas Sequence
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 1680: | \[L_{1680}\] | 2 × 223 × 449 × 769 × 2207 × 3167 × 18143 × 26881 × 91841 × 161281 × 281490241 × 416187743 × 1368322369 × 17025294721<11> × 23725145626561<14> × 1154149773784223<16> × 62622732352299841<17> × 1292528726309580481<19> × 1999653272832963841<19> × 445869833657787739063361<24> × 69546813833965858411097465190527041<35> × 430907800308311279382681132707028965444883064777258059014733004044362368746225124470979148603457776493529898665747791436768472282668765282561<141> |