Checks if prime in very naive way
        :return: True iff prime

def is_naive_prime(self):
        """Checks if prime in very naive way
        :return: True iff prime
        """
        if self.to_int < 2:
            return False
        elif self.to_int % 2 == 0:
            return False

        return self.to_int in LOW_PRIMES