Thu Oct 31 2019
Prime Composite
C++ Programming1739 views
File Name: prime-composit.cpp
#include<iostream>
using namespace std;
int main() {
int i, no;
/* Declear boolean type variable in C++ */
bool flag = true;
/* 'endl' insert linefeed like '\n' */
cout << "Check the given number is Prime or Composite" << endl;
cout << "Enter a number:" << endl;
cin >> no;
i = no / 2;
/* Loop the process using "while loop" */
while(i >= 2) {
if(no % i == 0) {
flag = false;
cout << "It's a Composite number!" << endl;
break;
}
i = i - 1;
}
if(flag)
cout << "It's a Prime Number!" << endl;
return 0;
}
/* Output */
/*
Check the given number is Prime or Composite
Enter a number:
23
It's a Prime Number!
*/
/* ------------------------------- */
/*
Check the given number is Prime or Composite
Enter a number:
99
It's a Composite Number!
*/
Author:Geekboots