Given that n=16 and r=14;
[tex]\frac{n!}{(n-r)!}[/tex]Recall that;
[tex]a!=a(a-1)(a-2)(a-3)\ldots[/tex][tex]\frac{16!}{(16-14)!}[/tex]Thus, we have;
[tex]\frac{16\times15\times14\times13\times12\times11\times10\times9\times8\times7\times6\times5\times4\times3\times2\times1}{2\times1}[/tex][tex]=10,461,394,944,000[/tex]