n!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 84: | \[84!!-1\] | 149 × 173 × 443 × 3109 × 9007 × 7866707 × 171567326091558008011<21> × 14317707732865970253959<23> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 84: | \[84!!-1\] | 149 × 173 × 443 × 3109 × 9007 × 7866707 × 171567326091558008011<21> × 14317707732865970253959<23> |