Lucas Sequence
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 491: | \[L_{491}\] | 3929 × 173321310054541991<18> × 6022785150083077437913621379480345923677398553266365202062238527938762082161442441<82> |