Gdesign a boolean function called isprime, that accepts an integer as an argument and returns true if the argument is a prime number, or false otherwise. use the function in a program that prompts the user to enter a number and then displays a message indicating whether the number is prime. the following modules should be written

#include <bits/stdc++.h>

using namespace std;

bool isPrime(int n)

{

   for(int j=2;j<=n-1;j++)  //loop to check prime..

   {

       if(n%j==0)

       return false;

   }

   return true;

}

int main(){

   int n;

   cout<<"Enter the integer"<<endl;//taking input..

   cin>>n;

   if(isPrime(n))//printing the message.

   {

       cout<<"The number you have entered is prime"<<endl;

   }

   else

   {

       cout<<"The number is not prime"<<endl;

   }

return 0;

}

Output:-

Enter the integer

13

The number you have entered is prime

Explanation:

The above written program is in C++.I have created a function called isPrime with an argument n.I have used a for loop to check if the number is prime or not.In the main function I have called the function isPrime for checking the number is prime or not.

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explanation:

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