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Searching for digital invariants

Published online by Cambridge University Press:  01 August 2016

Don Cowell
Don Cowell*
Affiliation:
Department of Computing and Mathematical Sciences, University of Greenwich, London SE18 6PF
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Extract

As an elementary programming exercise I often ask students to find all three digit numbers equal to the sum of the cubes of their digits, for example 153 = 13 + 53 + 33. This is the usual solution:

Type
Articles
Information
The Mathematical Gazette , Volume 80 , Issue 489 , November 1996 , pp. 519 - 525
Copyright
Copyright © The Mathematical Association 1996

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References

1. Wolfram, S. Mathematica – A System for Doing Mathematics by Computer (Second Edition), Addison-Wesley, Redwood City, California (1991).Google Scholar