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What is the sum of the unique prime factors of 207?

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Math Expert
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V
Joined: 02 Sep 2009
Posts: 46117
What is the sum of the unique prime factors of 207? [#permalink]

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New post 16 Aug 2017, 00:18
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

74% (00:34) correct 26% (00:45) wrong based on 77 sessions

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Intern
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B
Joined: 28 May 2017
Posts: 18
Re: What is the sum of the unique prime factors of 207? [#permalink]

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New post 16 Aug 2017, 00:33
1
B 26 according to me

As 207 = 3*3*23

So we need sun of unique prime no
3+23 = 26


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Re: What is the sum of the unique prime factors of 207?   [#permalink] 16 Aug 2017, 00:33
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What is the sum of the unique prime factors of 207?

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