n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 143: | \[143!!!+1\] | 1739687 × 7646467983467<13> × 202382462647056048213377<24> × 74567533273905872910595124619426762392197<41> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 143: | \[143!!!+1\] | 1739687 × 7646467983467<13> × 202382462647056048213377<24> × 74567533273905872910595124619426762392197<41> |