#include <bits/stdc++.h>
using namespace std;
const int N = 11000000 + 10;
int n, q;
vector<int> p;
vector<int> v;
int cnt[N];
int prime[N];
int prv[N];
int dp[N];
int main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cin >> n >> q;
p.resize(n);
for(int i = 0; i < n; i++) cin >> p[i];
for(int i = p.size() - 1; i >= 0; i--) {
for(int j = p[i]; j < N; j += p[i]) {
if(prime[j] == 0) {
cnt[j]++;
prime[j] = p[i];
}
}
}
cnt[0]++;
prime[0] = p.back();
for(int i = 0; i < N; i++) for(int j = 0; j < cnt[i]; j++) v.push_back(i);
int j = 0;
for(int i = 1; i < N; i++) {
while(v[j] + prime[v[j]] <= i) j++;
prv[i] = v[j];
}
for(int i = 1; i < N; i++) {
if(prv[i] == i) dp[i] = -1;
else dp[i] = dp[prv[i]] + 1;
}
while(q--) {
int x;
cin >> x;
if(x < p.back()) cout << "1\n";
else if(dp[x] == -1) cout << "oo\n";
else cout << dp[x] << "\n";
}
return 0;
}
