n!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
* 498: | \[498!!!-1\] | 433 × 48601900255687<14> × 2435077433882123<16> × 336751315048226173<18> × [8309706349590424616249860725209215505875749278524077549071607358806076267839711717689267964309882352511695184941498672500898491461095305619258652929436742625692028890456720107135442160055523677715469149579304940966091780588896463927854268404039539399814326720117589598945249143327244755539927630748223212468440208744266318413511<328>] |