n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 84: | \[84!!+1\] | 43 × 83 × 6737 × 28573 × 17660115375015499<17> × 220793909582776351<18> × 2306685951130276321<19> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 84: | \[84!!+1\] | 43 × 83 × 6737 × 28573 × 17660115375015499<17> × 220793909582776351<18> × 2306685951130276321<19> |