#include <bits/stdc++.h>
using namespace std;
#define REP(i,a,n) for(int i=(a); i<(int)(n); i++)
#define rep(i,n) REP(i,0,n)
#define FOR(it,c) for(__typeof((c).begin()) it=(c).begin(); it!=(c).end(); ++it)
#define ALLOF(c) (c).begin(), (c).end()
typedef long long ll;
typedef unsigned long long ull;

ll extgcd(ll a, ll b, ll &x, ll &y){
  ll d = a;
  if(b!=0){
    d = extgcd(b,a%b,y,x);
    y -= (a/b)*x;
  }else{
    x = 1; y = 0;
  }
  return d;
}

ll mod_inverse(ll a, ll m){
  ll x, y;
  extgcd(a, m, x, y);
  return (m+x%m)%m;
}

ll mod_pow(ll x, ll n, ll mod){
  if(n==0) return 1;
  ll res = mod_pow(x * x % mod, n / 2, mod);
  if(n & 1) res = res * x % mod;
  return res;
}

int main(){
  int T;
  cin >> T;

  rep(i,T){
    ll X, K;
    cin >> X >> K;

    ll KK = mod_inverse(K, 1000000006);
    cout << mod_pow(X, KK, 1000000007) << endl;
  }
  
  return 0;
}