Understanding Armstrong Numbers in Python

To grasp the concept of Armstrong numbers, it’s essential to have a solid foundation in Python programming, specifically in if...else statements and while loops.

What is an Armstrong Number?

A positive integer is considered an Armstrong number of order n if it meets a specific condition. For instance, a three-digit number is an Armstrong number if the sum of each digit cubed is equal to the original number.

Example Use Case

Let’s say we want to check whether a number between 100 and 2000 is an Armstrong number or not. We can use a simple Python program to achieve this.

Source Code
“`python
lower = 100
upper = 2000

for num in range(lower, upper + 1):
# Check if the number is an Armstrong number
if isarmstrong(num):
print(num)
“
In this example, we've set the lower limit to 100 and the upper limit to 2000 using Python'srange()function. We then use aforloop to iterate from the lower limit to the upper limit, incrementing the value by 1 in each iteration. Inside the loop, we check whether the current number is an Armstrong number using theisarmstrong()` function.

Tips and Variations

You can modify the range by changing the values of the lower and upper variables. Just remember to keep the lower variable less than the upper variable for the program to work correctly.

For more information on related topics, you may want to explore Python’s len() function and strings.