GMAT Question of the Day: Daily via email | Daily via Instagram New to GMAT Club? Watch this Video

 It is currently 24 Jan 2020, 18:21

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

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

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 60647
What is the sum of the unique prime factors of 207?  [#permalink]

### Show Tags

16 Aug 2017, 00:18
00:00

Difficulty:

15% (low)

Question Stats:

75% (00:55) correct 25% (01:03) wrong based on 97 sessions

### HideShow timer Statistics

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

(A) 23
(B) 26
(C) 29
(D) 69
(E) 207

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

### Show Tags

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

Sent from my iPhone using GMAT Club Forum
Re: What is the sum of the unique prime factors of 207?   [#permalink] 16 Aug 2017, 00:33
Display posts from previous: Sort by