#include <iostream>
#include <fstream>
#include <cmath>
using namespace std;
ifstream f("gfact.in");
ofstream g("gfact.out");
int main()
{
    int p,q;
    long long a,i;
    f>>p>>q;
    f.close();
    a=pow(p,q);
    int pr=1;
    for(i=1;i<=1000000000;++i)
    {
        pr=pr*i;
        if (pr%a==0) break;
    }
    cout<<i;
    g.close();
    return 0;
}