34,790

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Number

$34 \, 790$ (thirty-four thousand, seven hundred and ninety) is:

$2 \times 5 \times 7^2 \times 71$

The $23$rd integer $m$ such that $m! - 1$ (its factorial minus $1$) is prime:

$3$, $4$, $6$, $7$, $12$, $14$, $30$, $32$, $33$, $38$, $94$, $166$, $324$, $379$, $469$, $546$, $974$, $1963$, $3507$, $3610$, $6917$, $21 \, 480$, $34 \, 790$

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