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1. Print Numbers 1–1002. Print Even Numbers in Range3. Print Odd Numbers in Range4. Sum of Digits5. Reverse Digits of a Number6. Calculate Factorial (Loop)7. Fibonacci Series8. Palindrome Number Check9. Count Digits in a Number10. GCD of Two Numbers (Loop)11. LCM of Two Numbers (Loop)12. Print Prime Numbers in Range13. Count Prime Numbers in Range14. Check Composite Number15. Power of 2 Checker16. Print Number Pattern17. Print Star Pattern18. Armstrong Numbers in Range19. Strong Numbers in Range20. Sum of Series 1/1 + 1/2 + … + 1/N21. Print Multiplication Series22. Print Pyramid Pattern23. Print Inverted Pyramid Pattern24. Print Floyd's Triangle25. Print Pascal's Triangle

Armstrong Numbers in Range in Python

Print all Armstrong numbers in a given range using loops.

BeginnerLoop ProgramsExample 18 of 25
armstrong-numbers-in-range.py
1# Program to print Armstrong numbers in a range
2

3start = int(input("Enter start of range: "))
4end = int(input("Enter end of range: "))
5

6for num in range(start, end + 1):
7    digits = str(num)
8    power = len(digits)
9    total = 0
10    for d in digits:
11        total += int(d) ** power
12    if total == num:
13        print(num)

Output

Enter start of range: 1
Enter end of range: 500
1
153
370
371
407

What's going on

We extend the Armstrong number logic to every number in the range and print those that satisfy the condition.

After this program

If the idea is still fuzzy, read Day 9: Loops and Iteration in the Python course. For a short check, try the Python quiz (300 questions). Stay with all 25 loop programs, or see every topic on Python exercises.

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