Use the function definition to write a function that returns a boolean value tha

Question

Use the function definition

to write a function that returns a boolean value that says if the user’s number is prime. In int main(), ask the user to enter a value. We will then write a while or for loop that will check if each value between 1 and the number the user entered is prime and output the result of each of those checks. Use our primeCheck function to check if numbers are prime rather than putting the algorithm inside int main()directly. This will help keep int main() nice and clean.

Sample Output

Explanation / Answer

#include<iostream>
#include<conio.h>
using namespace std;

bool primeCheck(int num);

int main()
{
int num;
cout<<"To print all prime numbers between 1 to N ";
cout<<"Enter value of N ";
cin>>num;
primeCheck(num);
return 0;

}

bool primeCheck(int num)
{
int i, isPrime, n;
for(n = 1; n <= num; n++){
isPrime = 0;
for(i=2;i<=n/2;i++){
if(n%i==0){
isPrime = 1;
break;
}
}

if(isPrime==0 && n!= 1)
cout<<n<<": is Prime";
           else
           cout<<n<<": not prime";
}
  
}

Related Questions

Navigate

• Browse (All)
• Browse U
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.