n!!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 301: | \[301!!!!!-1\] | 52 × 57785681 × 903312367 × 2944259001828390985554629945897<31> × 4649153276484766402981042923856204285242449175047377645893894214452813604769<76> |