#include <iostream>
#include <fstream>

using namespace std;
ifstream f("pinex.in");
ofstream g("pinex.out");

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

int main()
{
    int M, A, B, nr;
    f >> M;
    for(int i = 1; i <= M; i++)
    {
        f >> A >> B;
        nr = 0;
        for(int j = 1; j <= A; j++)
            if(cmmdc(j, B) == 1)
                nr++;
        g << nr << '\n';
    }
    return 0;
}