Armstrong Numbers

Stretch your scholars' investigation of number patterns. Groups explore the idea of Armstrong numbers and determine a method to find them. Using spreadsheets or a calculator, teams find the Armstrong numbers less than 1,000. They continue to investigate other patterns occurring when summing the powers of the digits of a number.

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CCSS: Designed
Instructional Ideas

  • Research Armstrong numbers to find more information
  • Challenge learners to develop a computer program that will find Armstrong numbers
Classroom Considerations

  • The class should be comfortable working with formulas in spreadsheets

  • Provides an Excel template to help individuals get started
  • Includes reflection questions for both the class and the teacher

  • None
Common Core