C++ Program to Check Whether a Number is Prime or Not.
int main()
{
int n, i;
bool isPrime = true;
cout << "Enter a positive integer: ";
cin >> n;
for(i = 2; i <= n / 2; ++i)
{
if(n % i == 0)
{
isPrime = false;
break;
}
}
if (isPrime)
cout << "This is a prime number";
else
cout << "This is not a prime number";
return 0;
}
Output
Enter a positive integer: 29This is a prime number.
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C++ Program to Check Whether a Number is Prime or Not.
c++ programming
er. manjeet singh
manjeet singh
mskuthar
prime number or not
www.mskuthar.blogspot.com