#include <stdio.h>
#include <stdbool.h>
#include <math.h>


bool is_prime(int num) {
    if (num < 2) return false;
    for (int i = 2; i <= sqrt(num); i++) {
        if (num % i == 0) return false;
    }
    return true;
}


void find_primes_starting_with_5() {
    printf("Prime numbers starting with 5 are:\n");
    for (int num = 500; num < 600; num++) {
        if (is_prime(num)) {
            printf("%d\n", num);
        }
    }
}

int main() {
    find_primes_starting_with_5();
    return 0;
}