n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 343: | \[343!!!!-1\] | 22 × 13421 × 1626829 × 207048148310099<15> × [2146945896326363702336564709225159249700612348018395034943664832677926170100485360964681199893236423639331974071725957251564044086712469117674378364380832541<157>] |