Factors

Pre-Algebra 1 Minute
I thought my daughter would have been a little older than 7 before she asked me a math question that I couldn’t immediately answer. I was wrong. Here was her question, asked innocently over breakfast one morning:
72 has 12 factors, and 12 is also a factor of 72. How many numbers are there that are like that?
It took me about 15 minutes before I could definitely give her an answer.
Rather than spoiling the fun for my readers, I’ll just leave this one unanswered and let you think about it.
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Published by John Quintanilla

I'm a Professor of Mathematics and a University Distinguished Teaching Professor at the University of North Texas. For eight years, I was co-director of Teach North Texas, UNT's program for preparing secondary teachers of mathematics and science.

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