n!/n# - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 56: | \[78!/78\#-1\] | 2579 × 36187 × 40915478202523<14> × 226591272878073029018303177<27> × 321340086919882990905598086428680064453<39> |