n!!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 121: | \[121!!!+1\] | 419 × 3463 × 15733 × 345311 × 727756525117452356473<21> × 6658789474091500091728376457167<31> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 121: | \[121!!!+1\] | 419 × 3463 × 15733 × 345311 × 727756525117452356473<21> × 6658789474091500091728376457167<31> |