n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 646: | \[646!!!!+1\] | 401 × 154242877 × 31241991413<11> × 1540058187211<13> × 26402845687071099061<20> × 16839979154315550022117<23> × [14067941836194574143900585176422682985209159613683913355959534934289164197666407622435835202688821677871510173919489125291436711581347564816297440046479663622064686426870241628897538803869887300561091206126153197079031572128503359959538049468720426221997178294207855582666364576329270626968444418997669584441243<311>] |