How many zeros are the end of ? : GMAT Problem Solving (PS)
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 22 Jan 2017, 15:38

### 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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# How many zeros are the end of ?

Author Message
TAGS:

### Hide Tags

Senior Manager
Joined: 03 Sep 2012
Posts: 338
Location: United States
Concentration: Healthcare, Strategy
GMAT 1: 730 Q48 V42
GPA: 3.88
WE: Medicine and Health (Health Care)
Followers: 16

Kudos [?]: 179 [0], given: 31

How many zeros are the end of ? [#permalink]

### Show Tags

15 Nov 2012, 06:23
12
This post was
BOOKMARKED
00:00

Difficulty:

15% (low)

Question Stats:

71% (01:51) correct 29% (00:45) wrong based on 906 sessions

### HideShow timer Statistics

How many zeros are at the end of 380! ?

(A) 90
(B) 91
(C) 94
(D) None
(E) 95

[Reveal] Spoiler:
In order to find the number of zeros we have to find out the number of 5's and 2's , because no. of 5's will be less then the number of 2's ..
[Reveal] Spoiler: OA

_________________

"When you want to succeed as bad as you want to breathe, then you’ll be successful.” - Eric Thomas

Math Expert
Joined: 02 Sep 2009
Posts: 36601
Followers: 7097

Kudos [?]: 93472 [2] , given: 10563

How many zeros are the end of ? [#permalink]

### Show Tags

15 Nov 2012, 06:41
2
KUDOS
Expert's post
2
This post was
BOOKMARKED
GMAT Club Legend
Joined: 09 Sep 2013
Posts: 13504
Followers: 577

Kudos [?]: 163 [0], given: 0

Re: How many zeros are the end of ? [#permalink]

### Show Tags

25 Jul 2014, 10:54
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
GMAT Club Legend
Joined: 09 Sep 2013
Posts: 13504
Followers: 577

Kudos [?]: 163 [0], given: 0

Re: How many zeros are the end of ? [#permalink]

### Show Tags

30 Aug 2015, 14:14
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
Intern
Joined: 26 Jul 2016
Posts: 33
Location: India
Concentration: Operations, Entrepreneurship
Schools: Tepper '19
GPA: 3.69
WE: Analyst (Manufacturing)
Followers: 1

Kudos [?]: 0 [0], given: 10

Re: How many zeros are the end of ? [#permalink]

### Show Tags

06 Oct 2016, 11:27
Bunuel wrote:

HELLO BUNNEL, THERE WAS A FORMULA I SAW ON GMATCLUB FORUM IN WHICH TRAILING ZEROS COULD BE CALCULATED BY INCREASING THE POWERS ON INDIVIDUAL FACTORS OF A NUMBER . FOR EG 100! = 100= 2*2*5*5 = 2^2 + 5^2 NOW WE WILL INCREASE THE POWER BY ONE I.E. 2^3 +5^3 = NOW ADDING THE POWERS = 6 , PERHAPS SOMETHING ON SIMILAR LINES CAN YOU EXPLAIN TO ME THAT CONCEPT?
Re: How many zeros are the end of ?   [#permalink] 06 Oct 2016, 11:27
Similar topics Replies Last post
Similar
Topics:
3 How many consecutive zeros will appear at the end of 43! if that numbe 4 02 Dec 2016, 13:09
2 How many zeroes are there at the end of the number N, if N = 100! + 20 4 08 Jun 2016, 09:50
2 How many zeros does 135^19 x 42^17 end with? 4 07 Sep 2013, 02:56
14 If 73! has 16 zeroes at the end, how many zeroes will 80! 7 15 Feb 2013, 11:24
75 How many zeros does 100! end with? 20 07 Sep 2010, 12:41
Display posts from previous: Sort by