n!!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 490: | \[490!!!!!-1\] | 18251 × 159191 × 48041789 × 164633200634258151137<21> × [129445547344520066771429562120219412404662533111849599087005923080604400162176220314226914651714296584418428052038234371084986073059257603535782414457242453001158321550481177502320328423<186>] |