input: Write a function to find all the numbers divisible by a certain number within a certain range. The function should take three integers as input: the start of the range (m), the end of the range (n), and the divisor. The function should return a list of all numbers within the range [m, n] that are divisible by the given divisor.
  assert find_numbers_divisible_by(36, 74, 6)==[36, 42, 48, 54, 60, 66, 72]
  assert find_numbers_divisible_by(10, 30, 5)==[10, 15, 20, 25, 30]
  assert find_numbers_divisible_by(100, 120, 7)==[105, 112]
  assert find_numbers_divisible_by(20, 20, 10)==[20]
  assert find_numbers_divisible_by(5, 15, 40)==[]
output: def find_numbers_divisible_by(m, n, divisor):
      return [i for i in range(m, n + 1) if i % divisor == 0]