n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 224: | \[224!!!!+1\] | 97 × 625861 × 13820089083280811<17> × 4904000880073895707283875939933261469<37> × 897257808655094011096101543698085856679357617267<48> |