n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 379: | \[379!!!!!+1\] | 21169 × 409351 × 6566894771<10> × 26943608602460807<17> × 2452829322985272682645490298290527373293363534820881975570642823<64> × 23944642291013771266506072186678108680471694049195544076923916173<65> |