n! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 77: | \[77!-1\] | 79 × 65092398534211571<17> × 7197081152989978879903<22> × 460713667599673925267213<24> × 8514735848011147991284933191468488012612882685449<49> |