n!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 209: | \[209!!!-1\] | 3 × 3278771 × 63252941 × 601801261 × 2870942020869099088881952235192263605172879769<46> × 4990273079214174850324459718607231142112743024181676430061651767<64> |