n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 91: | \[91!!+1\] | 22 × 401 × 43385263 × 11378184897113339<17> × 122555945935756414903<21> × 331025572021519393301089<24> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 91: | \[91!!+1\] | 22 × 401 × 43385263 × 11378184897113339<17> × 122555945935756414903<21> × 331025572021519393301089<24> |