C Programming
Prime Number
Learn C programming for checking user given number is prime or composite
By Geekboots
5/23/2018
0 views
prime-number.cC
#include<stdio.h>
int main() {
	int i, no, j=0;
	printf("Check the given number is Prime or Composite\n");
	printf("Enter a number:\n");
	scanf("%d", &no);
	i = no / 2;
	/* Loop the process using "while loop" */
	while(i >= 2) {
		if(no % i == 0) {
			j = 1;
			printf("It's a Composite number!\n");
			break;
		}
		i = i - 1;
	}
	if(j != 1)
		printf("It's a Prime Number!\n");
	return 0;
}
/* Output */
Check the given number is Prime or Composite
Enter a number:
6
It's a Composite number!
/* ---------------------------------------- */
Check the given number is Prime or Composite
Enter a number:
5
It's a Prime Number!
C languageC codingprime compositeprime composite numbercomposite number