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#include <cstdio>
#include <cmath>
using namespace std;
int numprimes(int n)
{
int lim=(int)sqrt((double)n);
int ans=n;
for(int i=2; i<=lim; i++)
{
bool ok=false;
while(n%i==0)
{
n/=i;
ok=true;
}
if(ok)
{
ans/=i;
ans*=(i-1);
lim=(int)sqrt((double)n);
}
}
if(n>1)
ans=ans/n*(n-1);
return ans;
}
int lgput (int a,int b,int mod)
{
if(b==0)
return 1;
else
{
int c= lgput(a,b/2,mod);
if(b&1)
return c*c%mod*a%mod;
else
return c*c%mod;
}
}
int iv(int a, int b)
{
return lgput(a,numprimes(b)-1,b);
}
int main()
{
freopen("inversmodular.in","r",stdin);
freopen("inversmodular.out","w",stdout);
int a,n;
scanf("%d%d",&a,&n);
printf("%d\n",iv(a,n));
return 0;
}