Posted by **Meghan** on Tuesday, November 17, 2009 at 7:52pm.

If a number has an odd number of factors, why can the number always be represented by the expression n2?

- 5th grade Math -
**bobpursley**, Tuesday, November 17, 2009 at 8:05pm
IT cant.

If I understand you , if a number say 105, which has an odd number of factors, 3*5*7, it should be a perfect square of some number n. Well, 105 is not a prefect square.

- 5th grade Math -
**Karen**, Wednesday, November 18, 2009 at 3:52pm
Guy

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