Homework 5 Problem 1

"""
1. Write a Python function called is_armstrong(number) that takes a three-digit 
    number as its parameter and returns True or False based on the nature of the
    number. If the function returns true, print {number} is an Armstrong number. 
    Otherwise print {number} is not an Armstrong number. (10 pts). 

Example

    is_armstrong(153) ---> return True

    is_armstrong(121) ---> return True

"""

# Write your solution for problem 1 here. 
    
import math
def is_armstrong(number): # "153"
    # how to take the number and seperate it into 3 digits
    if number < 100 or number > 999:
        return False
    string_number = str(number)
    firstDigit = int(string_number[0])
    secondDigit = int(string_number[1])
    lastDigit = int(string_number[2])
    result = pow(firstDigit, 3) + pow(secondDigit, 3) + pow(lastDigit, 3)
    
    if result == number:
        print(f"{number} is an Armstrong number.")
        return True
    else:
        print(f"{number} is not Armstrong number.")

        return False