n!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 269: | \[269!!!!-1\] | 23 × 101737732679482557603318103956162344012882281046685313931<57> × 3087472035082635185626951430766284504080341088225478232976662828466512837320363<79> |