#include <fstream>

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

int Fp[15],Ex[15],Nf;///Descompunerea in factori a lui B
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+=(d==2) ? 1 : 2)
        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';
    }
    f.close();
    g.close();
    return 0;
}