Posted by **Anonymous** on Wednesday, June 24, 2009 at 2:10am.

What characteristic do the numbers 8, 10, 15, 26, and

33 have that the numbers 5, 9, 16, 18, and 24 don’t

have? (Hint: List the factors of the numbers.) Give two

more numbers that have this characteristic.

- Math -
**Writeacher**, Wednesday, June 24, 2009 at 8:41am
assistance needed

Please type your __subject__ in the **School Subject** box. Any other words are likely to delay responses from a teacher who knows that subject well.

- math -
**PsyDAG**, Wednesday, June 24, 2009 at 1:25pm
8 = 2*2*2

10 = 2*5

15 = 3*5

26 = 2*13

33 = 3*11

5 is prime

9 = 3*3

16 = 2*2*2*2

18 = 2*3*3

24 = 2*2*3

From these factors, I do not see any factor that is common to all the numbers in one group that differ from all the numbers of the other group. However, most typical of the second group are factors that are squared (the number multiplied by itself). Only one in the first group involves a square.

This is assuming that there is no typo in the numbers you provided.

I hope this helps. Thanks for asking.

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