Lucas Sequence
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 493: | \[L_{493}\] | 59 × 3571 × 19489 × 2004539 × 964838287139321446051<21> × 1352091823712049679616025983437139711549290136004358066983966563609<67> |