#include<iostream>
#include<cstdio>
#include<cstring>
using namespace std;
int boo[105]={0},ans[2000005],q=0;;
int main(){
	freopen("fireshow.in","r",stdin);
	freopen("fireshow.out","w",stdout);
	int c,n;
	scanf("%d%d",&c,&n);
	for(int i=0;i<c;i++){
		
	scanf("%d",&boo[i]);
	for(int ii=0;ii<i;ii++){
		if(boo[i]%boo[ii]==0){
			boo[i]=0;
			i--;c--;
			break;
		}
	}
	
}
int len=0;
for(int i=0;;i++){
	if(boo[i]==0){
		len=i;
		break;
	}
	
}
for(int i=0;i<len;i++){
	for(int ii=0;ii<n;ii=ii+boo[i]){
		if(ans[ii]==0){
			ans[ii]++;q++;
		}
	}
}
printf("%d",q);
return 0;

}