Lucas Sequence
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 1391: | \[L_{1391}\] | 521 × 136319 × 47927441 × 479836483312919<15> × 308131406343152466283524146603031435289810518616779667797705577868087504002833803325832616754138518814613356132670998277740843115131471697898020154826290539414524271883550257471643572352614905301277202530404741568011254318865133344018371788228982563736001869919<261> |