Article Title
Some Interesting Multiples of Nine: Use Your Digits to Get the Digits!
Abstract
We have unraveled two neat and powerful algorithms for calculating certain multiples of nine. These discussions might make for an interesting introduction to a number theory course, or a supplemental project in calculus or advanced algebra. The mathematics involved is within a student’s grasp, and the results are quite startling.
Recommended Citation
Hurley, Kevin
(2004)
"Some Interesting Multiples of Nine: Use Your Digits to Get the Digits!,"
Electronic Proceedings of Undergraduate Mathematics Day: Vol. 1, Article 6.
Available at:
https://ecommons.udayton.edu/epumd/vol1/iss1/6
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