```
#include<bits/stdc++.h>
using namespace std;
int main()
{
int a,i,j,max;
scanf("%d",&a);
for(i=2;i<sqrt(a);i++)
{
if(a%i==0){
j=a/i;
break;
}
}
if(i>j){
max=i;
}
else
{
max=j;
}
printf("%d",max);
return 0;
}
```
@[yuwuyanqiu](/user/937113)
by ninji @ 2023-06-08 21:14:16
$1 \le n\le 2\times 10^9$
by _SqrtTree_ @ 2023-06-08 21:14:39
搞不好要循环很多次+判断质数
by Eliboy @ 2023-06-08 21:16:41
```cpp
#include<bits/stdc++.h>
using namespace std;
int main()
{
long long n,i;
cin>>n;
for(int i=2;i<=n;i++)
{
if(n%i==0)
{
cout<<n/i;
return 0;
}
}
return 0;
}
```
by Code_Fish_Hp @ 2023-06-08 21:21:47
感谢所有人，好人有好报，好人有好报
by yuwuyanqiu @ 2023-06-08 22:29:45
@[yuwuyanqiu](/user/937113)
```cpp
#include<iostream>
using namespace std;
bool isz(int a){
bool yn=true;
for(int i=2;i*i<=a;i++)
if(a%i==0)
yn=false;
return yn;
}
int main(){
int a;
cin>>a;
for(int i=2;i<a;i++)
if(a/i*i==a)
if(isz(i))
if(isz(a/i)){
cout<<a/i;
break;
}
return 0;
}
```
by ZackofZHOU @ 2023-06-17 14:31:15
给你们看一下我的代码
by lucas_777 @ 2023-06-24 14:52:03
```cpp
#include <bits/stdc++.h>
using namespace std;
int main(){
int n;
cin >> n;
for (int i = 2;i <= n;i++)
if(n % i == 0){
cout << (n / i);
return 0;
}
return 0;
}
```
by lucas_777 @ 2023-06-24 14:52:22
```cpp
#include<bits/stdc++.h>
using namespace std;
int main()
{
int n;
cin>>n;
for(int i=2;i<=n;++i)
{
if(n%i==0)
{
cout<<n/i<<endl;
return 0;
}
}
return 0;
}
```
by liuyinuo666 @ 2023-08-23 13:44:46