Posted by **lily** on Sunday, September 14, 2008 at 2:28pm.

1)List all #s less than 100 with exactly 5 factors.

For this I got 16 , 36, 64, and 81.

2)Find the next 2 #s, each greater than 100, that have exactly 5 factors.

This is the problem I am having trouble with.

- math, please help -
**Anonymous**, Sunday, September 14, 2008 at 2:42pm
Are you including 1 and the number itself, or not? Either way, 36 has more than five factors: I can think of 2, 3, 4, 6, 9, 12 and 18. (Or do you mean prime factors?)

- math, please help -
**lily**, Sunday, September 14, 2008 at 3:52pm
I am including 1 and the # itself, and you are right, 36 is not one of the answers. thank you for the correction, but i still need help with the second problem

- math, please help -
**PsyDAG**, Monday, September 15, 2008 at 5:18am
See my response to your later repeat post.

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