n! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 66: | \[66!+1\] | 67 × 1061 × 18057624081136493013373<23> × 42607422767369562012435736497443<32> × 9952636204265093307383973691627657<34> |