n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 268: | \[268!!!!-1\] | [794270460638548935303299029134542382620737620031071767485562032812154408720352887819729894779751598540476850694361448447999999999999999<135>] |