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#include <bits/stdc++.h>
const int bz=1e9;
using namespace std;
ifstream f("indep.in");
ofstream g("indep.out");
int n,i,j,a,len[1010],val[1010][30];
void ad(int i,int j)
{
int ovr=0;
for(int r=1;r<=max(len[i],len[j])+3;r++)
{
val[j][r]+=val[i][r]+ovr;
ovr=val[j][r]/bz;
val[j][r]%=bz;
}
for(int r=1;r<=20;r++)
if(val[j][r])
len[j]=r;
if(!len[j])len[j]=1;
}
int main()
{
f>>n;
for(i=0;i<=1000;i++)
len[i]=1;
val[0][1]=1;
for(i=1;i<=n;i++)
{
f>>a;
for(j=1;j<=1000;j++)
{
int x=__gcd(j,a);
ad(j,x);
}
ad(0,a);
}
g<<val[1][len[1]];
for(i=len[1]-1;i>=1;i--)
{
int k=1,a[20];
for(j=1;j<=9;j++)
{
a[++k]=val[1][i]%10;
val[1][i]/=10;
}
for(j=9;j>=1;j--)
g<<a[j];
}
return 0;
}