#include <bits/stdc++.h>

using namespace std;

#define USE_STD_IO 0
#if USE_STD_IO
    #define fin cin
    #define fout cout
#else
    ifstream fin("indep.in");
    ofstream fout("indep.out");
#endif // USE_STD_IO

typedef int NrMare[1002];
const int BAZA = 1000;

NrMare d[1002], unu;
int n, i, j, a;

static inline int Cmmdc(int a, int b) {
    if(0 == a) return b;
    if(0 == b) return a;
    int rest;
    do {
        rest = a % b;
        a = b;
        b = rest;
    }
    while(0 != b);
    return a;
}

static inline void Add(NrMare a, NrMare b) {
    int i = 1, t = 0;
    while(i <= a[0] || i <= b[0] || t) {
        t += a[i] + b[i];
        a[i] = t % BAZA;
        t /= BAZA;
        i++;
    }
    a[0] = i - 1;
}

int main() {
    if(USE_STD_IO) ios_base::sync_with_stdio(false);
    fin.tie(NULL);
    fout.tie(NULL);

    fin >> n;
    unu[0] = unu[1] = 1;
    for(i = 1; i <= n; i++) {
        fin >> a;
        for(j = 1; j <= 1000; j++) {
            Add(d[Cmmdc(j, a)], d[j]);
        }
	Add(d[a], unu);
    }
    if(d[1][0] == 0) fout << 0;
    else {
        fout << d[1][d[1][0]];
        for(i = d[1][0] - 1; i >= 1; i--) {
            fout << setw(3) << setfill('0') << d[1][i];
        }
    }

    return 0;
}