[Tutor] Find the Greatest number out of 3 (Python 3.7.0)

[Aliyan Navaid]

   number1 = input('Number1: ')

   number2 = input('Number2: ')

   number3 = input('Number3: ')

    

   if number3 > number2 and number3 > number1:

       print('Number 3')

    

   elif number2 > number1 and number2 > number3:

       print("Number 2")

    

   else:

       print('Number 1')

    

    

   When given values Number1 = 423, Number 2 = 23 and Number 3 = 43 the
   program outputs “Number3” even though the correct answer should’ve been
   Number 1. Can somebody please explain why is this program not functioning
   properly ?