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When we're asked to count the # of factors of a certain

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When we're asked to count the # of factors of a certain [#permalink] New post 08 Apr 2007, 07:34
When we're asked to count the # of factors of a certain number do we include 1 and the # itself? (ie 9 has 4 factors 3,3,1 and 9)
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 [#permalink] New post 08 Apr 2007, 08:13
yes we do.

And for the integer 9, the factors are : 1, 3, 9
The integer 9 has Three factors.
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 [#permalink] New post 08 Apr 2007, 09:38
ok. thanks. VERY careless error on my part
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Re: Simple factoring question [#permalink] New post 08 Apr 2007, 11:29
ggarr wrote:
When we're asked to count the # of factors of a certain number do we include 1 and the # itself? (ie 9 has 4 factors 3,3,1 and 9)


Factor by definition is any number that divides the original. Since 1 and the number divide itself so they are factors.
Re: Simple factoring question   [#permalink] 08 Apr 2007, 11:29
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