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Is 30 a factor of n? --------------------------------- 1) 30

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Is 30 a factor of n? --------------------------------- 1) 30 [#permalink] New post 10 Nov 2004, 07:18
Is 30 a factor of n?
---------------------------------
1) 30 is a factor of n^2

2) 30 is a factor of 2n
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 [#permalink] New post 10 Nov 2004, 07:57
I'd say C
1) sqrt 30 or 30^2 will yield different answers. insuff.
2) 15 or 30 will yield diff. answers. insuff
Both combined we know that n must have a factor of 2,3 and 5.
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 [#permalink] New post 11 Nov 2004, 01:13
C is correct.

Although the factor of "2" is not so trivial to find.
  [#permalink] 11 Nov 2004, 01:13
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Is 30 a factor of n? --------------------------------- 1) 30

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