n!!!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 215: | \[215!!!!!+1\] | 271 × 74521 × 304248308512357712932777<24> × 11178427640952987416661543976750887251731140795922543<53> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 215: | \[215!!!!!+1\] | 271 × 74521 × 304248308512357712932777<24> × 11178427640952987416661543976750887251731140795922543<53> |