ACT Math : Factors / Multiples

Study concepts, example questions & explanations for ACT Math

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Example Questions

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Example Question #9 : How To Factor A Number

What is the median value of the factors of ?

Possible Answers:

There is no median.

Correct answer:

Explanation:

To find the number of factors of a given number, the easiest thing to do is to make a table of the factors, starting with  and that number. So, for , we get:

At this point, the values begin to repeat. This means that there are an even number of factors. At the "middle" of the list, we find  and . To find the median of the list, you merely need to take the average of these two numbers:

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