Lucas Sequence
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
447: | \[L_{447}\] | 22 × 1789 × 952111 × 4434539 × 595079479 × 3263039535803245519<19> × 44572961316701091570454843936327625650477556780221<50> |