Lucas Sequence
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 1920: | \[L_{1920}\] | 2 × 7681 × 15361 × 40961 × 119809 × 885503 × 1359361 × 1769526527 × 6780056714526721<16> × 8200100029286401<16> × 151654236902860817921<21> × 4698167634523379875583<22> × 952510147649352149463041<24> × 305157902492334788859520001<27> × 74374487830388825730162393840383<32> × 85409535844265560050225921678362375221989826057296975850547940436597331464001164441546043838659617377385223961426310433712389525415700845128189902509794892654276713339258091455576030751055045054801400570881<206> |