#include <iostream>
#include <stdio.h>
#include <algorithm>

int main()
{
	int N; std::cin >> N;
	int *x = new int[N];
	int *dp = new int[N];
	for(int i=0;i<N;i++)
	{
		std::cin >> x[i];
	}
	std::sort(x , x+N);
	dp[0] = 1;
	int last = x[0];
	int M = 0;
	for(int i=1;i<N;i++)
	{
		//dp[i] = dp[i-1]+1 or dp[i-1];
		if(x[i]%last==0)
		{
			dp[i] = dp[i-1]+1;
			last = x[i];
		}
		else
		{
			dp[i] = dp[i-1];
		}
	}
// 	for(int i=0;i<N;i++)
// 	{
// 		printf("dp[%d] = %d\n" , i , dp[i]);
// 	}
	std::cout << dp[N-1] << std::endl;

	delete[] x;
	delete[] dp;

	return 0;
}