#include <fstream>
using namespace std;
ifstream  fin("pinex.in");
ofstream fout("pinex.out");
int M;
long long A,B;

int euclid(int a, int b)
{
    int r;
    while(b)
    {
        r=a%b;
        a=b;
        b=r;
    }

    return a;
}

int main()
{
    fin>>M;

    for(int q=1; q<=M; q++)
    {
        fin>>A>>B;

        int nr=0;
        for(int i=1; i<=A; i++)
        {
            if(euclid(B,i)==1)
            {
                nr++;
            }
        }

        fout<< nr << "\n";
    }

    return 0;
}