($n,$k,$m)=glob<>;
%h=1;
for($j=2;$n>1;){
	if($n%$j){
		$j=int$n/int$n/($j+1);
	}else{
		$n/=$j;
		for$a(keys%h){
			for(1..$k){
				$a*=$j;
				last if $a>$m;
				$h{$a}=0;
			}
		}
	}
}
print~~keys%h