n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
224: | \[224!!!!!+1\] | 52 × 2903 × 49957 × 1496430319 × 41957117512433<14> × 68672764443216509<17> × 72344261758106399<17> × 1203861050076160076911<22> |