Write a C++ program to check given number is prime or not.

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Assignments » Flow Of Control » Set 2 » Solution 07

Source Code: 

#include<iostream>
using namespace std;

int main()
{
 int n;
 bool flag=false;
 cout<<"Enter any number : ";
 cin>>n;

 for(int i=2;i<n;i++)
 {
  if(n%i==0)
  {
   flag=true;
   break;
  }
 }

 if(flag==false && n>1)
  cout<<"Number is prime";
 else
  cout<<"Number is not prime";


 return 0;
}

  The Output Is:  


SAMPLE RUN # 1

Enter any number : 67
Number is prime

SAMPLE RUN # 2

Enter any number : 45
Number is not prime