n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
341: | \[341!!!!!+1\] | 317 × 877 × 6123223 × 1252340211503798291609341669696119413846264016454626738261577620975890570799302280029806471991773602203178695018587606296283654582751<133> |