Write a C++ Program to check whether a number is prime number or not?
Write a C++ Program to check whether a number is prime number or not?
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#include <iostream>
using namespace std;
int main()
{
int n, i, m=0, fl=0;
cout << “Enter the Number to check Prime: “;
cin >> n;
m=n/2;
for(i = 2; i <= m; i++)
{
if(n % i == 0)
{
cout<<“Number is not Prime.”<<endl;
fl=1;
break;
}
}
if (fl==0)
cout << “Number is Prime.”<<endl;
return 0;
}