#include <stdio.h>

#define DIM 45005
#define ll long long

ll v[DIM][2];
ll p,q,n,m,nrt;

void init ()
{
    ll i,put;

    if (p%2==0 && p>=4)
    {
        for (put=0; p%2==0; p/=2, ++put);
        v[++m][0]=2;
        v[m][1]=put*q;
    }
    for (i=3; i*i<=p; i+=2)
    {
        if (p%i==0)
        {
            for (put=0; p%i==0; p/=i, ++put);
            v[++m][0]=i;
            v[m][1]=put*q;
        }
    }
    if (p)
    {
        v[++m][0]=i;
        v[m][1]=q;
    }
}

inline ll det (ll nr,ll prim)
{
    ll x;

    for (x=0; nr; x+=(nr/=prim));
    return x;
}

inline ll cbin (ll prim,ll put)
{
    ll st,dr,mij,nr;

    for (st=1, dr=put; st<=dr; )
    {
        mij=(st+dr)/2;
        nr=det (mij,prim)+mij;
        if (nr==put)
            return mij;
        else if (nr<put)
            st=mij+1;
        else
            dr=mij-1;
    }
    return 0;
}

inline ll max (ll a,ll b)
{
    if (a>b)
        return a;
    return b;
}

void solve ()
{
    ll i;

    for (i=1; i<=m; ++i)
        nrt=max (nrt,cbin (v[i][0],v[i][1])*v[i][0]);
    printf ("%lld",nrt);
}

int main ()
{
    freopen ("gfact.in","r",stdin);
    freopen ("gfact.out","w",stdout);

    scanf ("%lld%lld",&p,&q);
    init ();
    if (p==1)
        nrt=1;
    solve ();
    
    return 0;
}