n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 312: | \[312!!!!!+1\] | 13702194581<11> × [587668346947649027033022984572304909166089854180402598567027016001018324970998272043873543072381523335214242828098223549<120>] |