n!/n# - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 66: | \[91!/91\#-1\] | 91308316825946176191949174587914933<35> × 62296070124295757030483178613434202507013375320620646666733632848354403<71> |