#include<fstream.h>
#define nmax 1000001
#define mmax 1001

int sol[nmax];
long t,i,j,a,b,max,x[mmax][mmax];

int main()
{
	ifstream f("divprim.in");
	ofstream g("divprim.out");


	f>>t;

	for(i=1;i<=t;i++)
		{ f>>a>>b;
		  if(a>max)	max=a;
		}
	for(i=2;i<=max;i++)
		if(sol[i]==0)
			for(j=i;j<=max;j=j+i)
				sol[j]++;
	f.close();

	f.open("divprim.in");

	for(i=2;i<=max;i++)
		{
			x[sol[i]][x[sol[i]][0]+1]=i;
			x[sol[i]][0]++;
		}

	f>>t;
	for(i=1;i<=t;i++)
		{
		f>>a>>b;
		j=1;

			while(j<=x[b][0])
				if(x[b][j]<a)
					while(x[b][j]<a&&j<=x[b][0])
						j++;
				else
					break;

		g<<x[b][j-1]<<"\n";
		}
	return 0;
}