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The product of the first twelve positive integers is

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Manager
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Joined: 20 Nov 2006
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The product of the first twelve positive integers is [#permalink] New post 20 Apr 2007, 09:23
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A
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C
D
E

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Question Stats:

100% (01:51) correct 0% (00:00) wrong based on 7 sessions
The product of the first twelve positive integers is divisible by all of the following EXCEPT
(A) 210
(B) 88
(C) 75
(D) 60
(E) 34


Please explain the asnwers
VP
VP
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Joined: 08 Jun 2005
Posts: 1146
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 [#permalink] New post 20 Apr 2007, 09:38
my answer is (E)

since 1*2*3*4*5*6*7*8*9*10*11*12 =

only 34 has prime factors grater then 12 = 17*2

that cannot be divided !!

:-D
  [#permalink] 20 Apr 2007, 09:38
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The product of the first twelve positive integers is

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