Lucas Sequence
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
680: | \[L_{680}\] | 47 × 1601 × 3041 × 1376321 × 9830081 × 280381350009601<15> × 2843304747267841<16> × 616713904085105580641<21> × 562627837283291940137654881<27> × 15098556848842849848964622710079616350508641<44> |