fn eratosthenes_sieve(n: usize) -> Vec<usize> {
    (2..=n.isqrt())
        .fold(vec![true; n + 1], |mut numbers, current_number| {
            if numbers[current_number] {
                (current_number * current_number..=n)
                    .step_by(current_number)
                    .for_each(|i| numbers[i] = false);
            }
            numbers
        })
        .into_iter()
        .enumerate()
        .skip(2)
        .filter_map(|(index, is_prime)| is_prime.then_some(index))
        .collect()
}