Lucas Sequence
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
580: | 7 × 2161 × 299281 × 264934633647576961<18> × 834428410879506721<18> × 18966059432741598940948721<26> × 859992109740792296494185923688061297158647591735921<51> |