#include <fstream>
#define w 2000000001
using namespace std;
bool c[w];
unsigned int phi[w/1000];
long long po(long long a,long long b)
{
    long long rez=1;
    while (b)
    {
        if (b%2) rez*=a;
        a*=a;
        b/=2;
    }
    return rez;
}
int main()
{
    ifstream f("inversmodular.in");
    ofstream g("inversmodular.out");
    int i,j,n,a;
    f>>a>>n;
    for (i=2;i*i<=n;i++)
    {
        for (j=2*i;j<=n;j+=i)
            c[j]=1,phi[j]++;
    }
    long long x=po(a,phi[n]-1);
    g<<x%n<<'\n';
    f.close();
    g.close();
    return 0;
}