n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 503: | \[503!!!!!+1\] | 209639 × 1469777 × 124528426553<12> × 1025907728767247027184523103579182746337747522113020551972785181064356315309573499394921920183408309201317820859003386338874774214744908985188086119194125176878529897114041052703868494533213389851985731460831<208> |