n!!!!! - 1
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
241: | \[241!!!!!-1\] | 5 × 47917741 × 476988461 × 611622650918093<15> × 45509374084735091<17> × 32833454675002095333681241475433893915620826237<47> |