#include <stdio.h>

int cmmdc(int a, int b)
{
    if (b == 0)
        return a;
    else
        return cmmdc(b, a % b);
}

int main()
{
    FILE *fin = fopen("pinex.in", "r");
    FILE *fout = fopen("pinex.out", "w");
    int n;
    fscanf(fin, "%d", &n);
    int i;
    for(i = 0; i < n; i++)
    {
        int a, b;
        fscanf(fin, "%d %d", &a, &b);
        int c = 1, j;
        for(j = 2; j <= a; j++)
            if(cmmdc(j, b) == 1)
                c++;;
        fprintf(fout, "%d\n", c);
    }
    return 0;
}