#include <bits/stdc++.h>
using namespace std;
typedef signed long long ll;

#define _P(...) (void)printf(__VA_ARGS__)
#define FOR(x,to) for(x=0;x<(to);x++)
#define FORR(x,arr) for(auto& x:arr)
#define FORR2(x,y,arr) for(auto& [x,y]:arr)
#define ALL(a) (a.begin()),(a.end())
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
template<class T> bool chmax(T &a, const T &b) { if(a<b){a=b;return 1;}return 0;}
template<class T> bool chmin(T &a, const T &b) { if(a>b){a=b;return 1;}return 0;}
//-------------------------------------------------------

ll L;
int N;
ll A[1010];
int p2[1010],p3[1010];

const int prime_max = 2000000;
int MU[prime_max+1];
int num[prime_max+1];

void mebius() {
	int i,j;
	for(i=1;i<=prime_max;i++) MU[i]=1, num[i]=i;
	for(int i=2;i<=prime_max;i++) if(num[i]==i) {
		for(j=i;j<=prime_max;j+=i) {
			int x=0;
			MU[j]=-MU[j];
			while(num[j]%i==0) {
				x++;
				num[j]/=i;
			}
			if(x>=2) MU[j]=0;
		}
	}
}

ll G(ll L,int a,int b) {
	static ll memo[1<<20][2][2];
	if(L==0) return 0;
	if(memo[L][a][b]) return memo[L][a][b];
	ll ret=0;
	for(ll i=1;i*i<=L;i++) {
		ll k=0;
		if(i%2==0&&a) k=0;
		else if(i%3==0&&b) k=0;
		else {
			ll pat=L/(i*i);
			k=pat;
			if(a) k-=pat/2;
			if(b) k-=pat/3;
			if(a&&b) k+=pat/6;
		}
		
		ret+=MU[i]*k;
	}
	return ret;
}

void solve() {
	int i,j,k,l,r,x,y; string s;
	
	mebius();
	cin>>L>>N;
	FOR(i,N) {
		cin>>A[i];
		while(A[i]%2==0) {
			p2[i]++;
			A[i]/=2;
		}
		while(A[i]%3==0) {
			p3[i]++;
			A[i]/=3;
		}
	}
	
	ll ret=0;
	int mask;
	assert(N<=20);
	FOR(mask,1<<N) if(mask) {
		int L2=100,R2=0,L3=100,R3=0;
		ll p=1;
		FOR(i,N) if(mask&(1<<i)) {
			p*=-2;
			L2=min(L2,p2[i]);
			R2=max(R2,p2[i]);
			L3=min(L3,p3[i]);
			R3=max(R3,p3[i]);
		}
		p/=-2;
		if(R2-L2>=2||R3-L3>=2) continue;
		ll V=L>>R2;
		FOR(i,R3) V/=3;
		ll v=G(V,(R2-L2),(R3-L3));
		ret+=p*v;
	}
	cout<<ret<<endl;
	
}


int main(int argc,char** argv){
	string s;int i;
	if(argc==1) ios::sync_with_stdio(false), cin.tie(0);
	FOR(i,argc-1) s+=argv[i+1],s+='\n'; FOR(i,s.size()) ungetc(s[s.size()-1-i],stdin);
	cout.tie(0); solve(); return 0;
}