n!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
219: | \[219!!!!+1\] | 24 × 2713 × 3203 × 93220556257<11> × 485856232013<12> × 72650125924867<14> × 10776657153875572930179511433076214502186145854288713894175167<62> |