sieve.rb

class Sieve
  attr_reader :values

  def initialize(max)
    @values = (2..max).to_a
  end

  def primes
    
    values.each do |value|
      puts "Filtering multiples of #{value} from #{values.inspect}"
      remove_multiples_of(value)
    end
    return values
  end

  def remove_multiples_of(value)
    @values = values.select{|v| (v % value != 0) || v == value}
  end

end