n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 227: | \[227!!!!+1\] | 22 × 23934373 × 784062127 × 73097048168494493886947<23> × 45484662752968461803443061804968494043916923059114148510379959103605037<71> |