Lucas Sequence
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 1688: | \[L_{1688}\] | 47 × 195809 × 586404449 × 6729276143<10> × 90837316289<11> × 425876886292035294607<21> × 20072433837670096961206049<26> × 64177062237202079236967412025216058565194548842063606049<56> × 32622136038142445132776874076996378053710600869591892081619135878651303987820694359925204091196730213495128263978396706398336668879501420669524943479610965770827184041160309666182517568103586291449060974108069786849<215> |