C :

#include<stdio.h>
void main()
{
	int x; 
 	scanf("%d",&x); 
	if(x != 1){ 
 	int i; 
 	int c = 0; //除了1很本身外的约数 
	for(i = 2;i <= x/2 ;i++){ 
		if(x % i == 0){ 
 			c++; 
 			printf("%d",i);
 			break; 
 		} 
	} 
 
 	if(c == 0){ 
 		printf("Yes");
 	}
	}
}

C++ :

#include<iostream>
#include<cmath>
using namespace std;

int main(){
	
	int n;
	int min;
	bool f;
	
	
	f=true;
	cin>>n;
	
	for(int i=2;i<=sqrt(n);i++){
		if(n%i==0){
			f=false;
			min=i;
			break;
		}
	}
	
	if(f==false || n==0 || n==1){
		cout<<min<<endl;
	}
	else
	{
		cout<<"Yes"<<endl;
	}
}

Pascal :

var
  n,a,i,s:longint;
begin
  read(n);
  s:=1;
  for i:=2 to trunc(sqrt(n)) do
  if n mod i=0 then begin s:=i; break; end
               else s:=0;
  if s=0 then write('Yes')
          else write(s);
end.

Java :

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
	@SuppressWarnings("resource")
	Scanner scanner=new Scanner (System.in);
    int m=scanner.nextInt();
    int a;
      for(a=2;a<m;a++) {
    	  if (m%a==0)
    		  break;}  
      if (m==a)
    		  System.out.println("Yes");
      else {int b;
    	  for (b=2;b<m;b++) {
    		  if(m%b==0) break;}
    			 System.out.println(b);
   	  
      }
     } 
	}

Python :

n=int(input())
f = 1
for i in range(2,n-1,1):
    if n % i==0:
        f = 0
        break
if f==1:
    print("Yes")
else:
    print(i)