#line 1 "a.cpp"
#include<iostream>
using namespace std;
#line 1 "/home/kotatsugame/library/math/extgcd.cpp"
template<typename T>
T extgcd(T a,T b,T&x,T&y)
{
	if(b==0)
	{
		x=1;
		y=0;
		return a;
	}
	T q=a/b;
	T g=extgcd(b,a-q*b,y,x);
	y-=q*x;
	return g;
}
#line 4 "a.cpp"
int T;
main()
{
	cin>>T;
	for(;T--;)
	{
		long X,K;cin>>X>>K;
		long x,y;
		long m=1e9+6;
		extgcd(m,K,x,y);
		y%=m;
		if(y<m)y+=m;
		m++;
		long r=1;
		while(y)
		{
			if(y%2)r=r*X%m;
			y>>=1;
			X=X*X%m;
		}
		cout<<r<<endl;
	}
}