n!! + 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 99: | \[99!!+1\] | 22 × 199 × 443 × 81558423403231<14> × 3071255858737613<16> × 30855130334212619240356031714794564584257839<44> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 99: | \[99!!+1\] | 22 × 199 × 443 × 81558423403231<14> × 3071255858737613<16> × 30855130334212619240356031714794564584257839<44> |