def __init__(self, n=(2 * (10 ** 6))):
    self.n = n
    (self.is_prime_number, self.prime_numbers) = self.sieve_of_eratosthenes(n)
def __init__(self, n=(2 * (10 ** 6))):
    self.n = n
    (self.is_prime_number, self.prime_numbers) = self.sieve_of_eratosthenes(n)