#include <iostream>
#include <fstream>

using namespace std;
const long long INF = 1LL << 62; /// Infinit

int Fp[15], Ex[15], Nf;
long long Expf[15];

ifstream f("zero2.in");
ofstream g("zero2.out");

void desc(int n)
{
    Nf = 0;
    for(int d = 2; d * d <= n; d++)
        if(n % d == 0)
        {
            Nf++;
            Fp[Nf] = d;
            Ex[Nf] = 0;
            do
            {
                Ex[Nf]++;
                n /= d;
            }
            while(n % d == 0);
        }
    if(n > 1)
    {
        Nf++;
        Fp[Nf] = n;
        Ex[Nf] = 1;
    }
}

void expp(int N)
{
    for(int i = 1; i <= Nf; i++)
    {
        long long pp = Fp[i];
        Expf[i] = 0;
        while(N >= pp)
        {
            int k = N / pp;
            Expf[i] += pp * k * (k - 1) / 2;
            Expf[i] += (N - k * pp + 1) * k;
            pp *= Fp[i];
        }
    }
}

int main()
{
    int N, B, t = 10;
    long long nrz;
    while(t--)
    {
        f >> N >> B;
        desc(B);
        expp(N);
        nrz = INF;
        for(int i = 1; i <= Nf; i++)
            nrz = min(nrz, Expf[i] / Ex[i]);
        g << nrz << '\n';
    }
    return 0;
}