hdu 2521

#include<iostream>

#include<cstdio>

#include<cstring>

#define MID(a,b)  ((a + b) >> 1)

using namespace std;



int cnt[5001];



int main()

{

    int n,a,b;

    cin >> n;

    memset(cnt,0,sizeof(cnt));

    cnt[1] = 1;

    for(int i = 2; i < 5001; i++)

    {

        for(int j = 2; j <= i / 2; j++)

            if(i % j == 0)

                cnt[i]++;

        cnt[i] += 2;

    }

    for(int i = 0; i < n; i++)

    {

        cin >> a >> b;

        int max = 0,result;

        for(int j = a; j <= b; j++)

        {

            if(cnt[j] > max)

            {

                max = cnt[j];

                result = j;

            }

        }

        cout << result << endl;

    }

}