A New Divisibility Test for a Class of Integers: The Frey-Hammett Divisibility Test

Darrell Minor

A New Divisibility Test for a Class of Integers

The Frey-Hammett Divisibility Test

Authors

Darrell Minor Columbus State Community College

Keywords:

divisibility

Abstract

The author discusses a recently-discovered divisibility test for the infinite class of integers ending in 1, 3, 7, or 9. He explains how to apply the divisibility test, provides examples, includes an explanation (proof) of why the test works, and provides some ideas to try in the classroom. The article ends with a method for extending the divisibility test to all integers.

References

Frey, D. and Hammett, A. (2021). An Infinite Family of Divisibility Tests. The College Mathematics Journal. 52(1), 2 – 10.

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Published

2022-09-08

How to Cite

Minor, D. (2022). A New Divisibility Test for a Class of Integers: The Frey-Hammett Divisibility Test. Ohio Journal of School Mathematics, 92(1), 8–12. Retrieved from https://ohiomathjournal.org/index.php/OJSM/article/view/9150

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Issue

Vol. 92: Fall 2022

Section

Articles