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;
    }
}