input: from typing import List
  
  
  def is_armstrong_number(numbers: List[int]) -> List[bool]:
      """ Given a list of integers, determine which of the numbers are Armstrong numbers.
      An Armstrong number is a number that is the sum of its own digits each raised to the power of the number of digits.
      Return a list of boolean values where each value indicates whether the corresponding number is an Armstrong number.
      >>> is_armstrong_number([153, 370, 371, 407, 120])
      [True, True, True, True, False]
      >>> is_armstrong_number([9474, 8208, 9475])
      [True, True, False]
      """
output:     results = []
      for num in numbers:
          num_str = str(num)
          num_digits = len(num_str)
          sum_of_powers = sum(int(digit) ** num_digits for digit in num_str)
          results.append(sum_of_powers == num)
      return results