#include<bits/stdc++.h>
using namespace std;
int gcd(long long a,long long b)
{
    if (b == 0)
        return a;
    else
        return gcd (b, a % b);
}
int main()
{
    int t;
    cin>>t;
    int cnt=1;
    while(t--)
    {
        long long a,b,c;
        cin>>a>>b>>c;
        long long k=gcd(abs(a),abs(b));
        if(c%k==0)
            cout<<"Case "<<cnt++<<": "<<"Yes"<<endl;
        else
            cout<<"Case "<<cnt++<<": "<<"No"<<endl;
    }
}