M is a positive integer, How many digits does M^3 have? 1) M : DS Archive
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 18 Jan 2017, 14:17

### 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

# M is a positive integer, How many digits does M^3 have? 1) M

Author Message
Manager
Joined: 09 Sep 2004
Posts: 54
Followers: 2

Kudos [?]: 127 [0], given: 0

M is a positive integer, How many digits does M^3 have? 1) M [#permalink]

### Show Tags

13 Sep 2004, 10:50
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

M is a positive integer, How many digits does M^3 have?

1) M is 3 digit number

2) M^2 is 5 digit number.
Intern
Joined: 03 Aug 2004
Posts: 26
Followers: 0

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

Re: DS - number of digits. [#permalink]

### Show Tags

13 Sep 2004, 11:09
mba4me wrote:
M is a positive integer, How many digits does M^3 have?

1) M is 3 digit number

2) M^2 is 5 digit number.

1) not sufficient...could be anything 100^3 = 1,000,000 (using the minimum 3 digit number), and 1000^3(easier than using maximum 3 digit number of 999) = 1,000,000,000

2) not sufficient...sq.root 10,000 (minimum 5 digit number) = 100, so bump it up a bit to 300 and 300^2 = 90,000 (close to the maximum 5 digit number), but still don't know how many digits m^3 has, because 100^3 = 1,000,000 and 300^3 = 27,000,000

Combined) still not sufficient
Re: DS - number of digits.   [#permalink] 13 Sep 2004, 11:09
Display posts from previous: Sort by