Problem 43

#include <stdio.h>

int prime(int n);

int main() {

//43. Write a function in the program to return 1 if number is prime otherwise return 0

int n;

printf("\tPrime Number");
printf("\n====================================\n\n");

printf("Enter The Number : ");
scanf("%d",&n);
int result = prime(n);

printf("\n------------------------------------\n\n");

if (result == 1) {
printf("%d is a prime number\n", n);
} else {
printf("%d is not a prime number\n", n);
}
printf("\n------------------------------------\n\n");

return 0;
}

int prime(int n) {
int i;
if (n <= 1) {
return 0;
}
for (i = 2; i < n; i++) {
if (n % i == 0) {
return 0;
}
}
return 1;
}
Run