Lucas Sequence
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
523: | \[L_{523}\] | 20921 × 274784124660681396498401941<27> × 3475055723537056225345802931020432759408099909683980529877628306620220002646089<79> |