Question

Write a program in c++ to add three consecutive prime number

Answer 1

#include <iostream>

using namespace std;

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: 29

This is a prime number.

This program takes a positive integer from user and stores it in variable n.

Then, for loop is executed which checks whether the number entered by user is perfectly divisible by i or not.