#include <bits/stdc++.h>

# pragma GCC optimize ("O3")
# pragma GCC target("sse,sse2,sse3,ssse3,sse4,avx,avx2")

#define x first
#define y second
#define pii pair<int, int>
#define ll long long
#define pll pair<ll, ll>

using namespace std;

int prime[(int)1e7];
vector<int> p;

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int t;
    cin >> t;
    for (int i=2; i<(int)4e3; i++) {
        if (prime[i]) continue;
        p.push_back(i*i);
        for (int j=2*i; j<(int)4e3; j+=i) {
            prime[j] = 1;
        }
    }
    while(t--) {
        int n, k;
        cin >> n >> k;
        int ans = 1;
        set<int> s;
        for (int i=0; i<n; i++) {
            int a;
            cin >> a;
            for (int pp : p) {
                while(a%pp==0) a/=pp;
            }
            if (s.find(a) == s.end()) s.insert(a);
            else {
                set<int> new_s;
                s = new_s;
                s.insert(a);
                ans++;
            }
        }
        cout << ans << '\n';
    }
    return 0;
}