n!!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 520: | \[520!!!!!-1\] | 5780952520559<13> × 384924613779383<15> × [22819237582042934646044024717211331021750522517729118030345444703508703536163448204758008293721641404567030599656339720431039038163413135500842362093973577637527054284982732219477901174611476338887877447007500567<212>] |