n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
147: | \[147!!!+1\] | 631 × 18097 × 114473 × 734659 × 101484109 × 3757207676264783215140739<25> × 397519366682086716342433602465221699<36> |