Lucas Sequence
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
668: | \[L_{668}\] | 7 × 34761383 × 5224663266929<13> × 79790263006423303761464301802984746049<38> × 395858886302834376750708787627841274779664544782199421988115532433453702890442247<81> |