n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 333: | \[333!!!!!+1\] | 757 × 16693 × 167987599981348678309502214733373<33> × 145168921156612046729539770251637453217438824249811835322507217718918218124072154967377367921242050621<102> |