public
def is_prime?
  (2..self-1).each do |num|
    return self % num == 0 ? false : true
  end
end

prime_numbers = []

(1..100000).each do |num|
  prime_numbers << num if num.is_prime?
  break if prime_numbers[100]
end

prime_numbers.each do |num|
  print num.to_s + "\t"
end