n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 292: | \[292!!!!!+1\] | 139 × 20558621 × 337612237 × 3794625048168249815334760061<28> × 256017845667044750803299688476871197216517479651320407041998415599487334423<75> |