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# The function f is defined by all positive integers n by the

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Manager
Joined: 21 Dec 2005
Posts: 102

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The function f is defined by all positive integers n by the [#permalink]

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09 Apr 2006, 04:23
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The function f is defined by all positive integers n by the following rule f(n) is the number of positive integers each of which is less than n and has no positive factors in common with n other than 1. If p is any prime number then f(p)=

a. p-1
b. p-2
c. p+1/2
d. p-1/2
e. 2

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SVP
Joined: 24 Sep 2005
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09 Apr 2006, 05:34

Kudos [?]: 386 [0], given: 0

09 Apr 2006, 05:34
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# The function f is defined by all positive integers n by the

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