Tracks
/
Tcl
Tcl
/
Exercises
/
Armstrong Numbers
Armstrong Numbers

Armstrong Numbers

Easy

Instructions

An Armstrong number is a number that is the sum of its own digits each raised to the power of the number of digits.

For example:

  • 9 is an Armstrong number, because 9 = 9^1 = 9
  • 10 is not an Armstrong number, because 10 != 1^2 + 0^2 = 1
  • 153 is an Armstrong number, because: 153 = 1^3 + 5^3 + 3^3 = 1 + 125 + 27 = 153
  • 154 is not an Armstrong number, because: 154 != 1^3 + 5^3 + 4^3 = 1 + 125 + 64 = 190

Write some code to determine whether a number is an Armstrong number.


Source

WikipediaThe link opens in a new window or tab
Last updated 6 October 2021
Edit via GitHub The link opens in a new window or tab
Tcl Exercism

Ready to start Armstrong Numbers?

Sign up to Exercism to learn and master Tcl with 120 exercises, and real human mentoring, all for free.