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

 It is currently 05 Aug 2020, 09:02 ### 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

#### Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.  # Integer y is the least common multiple of 98, 220, and 270. Which of

Author Message
TAGS:

### Hide Tags

Math Expert V
Joined: 02 Sep 2009
Posts: 65807
Integer y is the least common multiple of 98, 220, and 270. Which of  [#permalink]

### Show Tags 00:00

Difficulty:   45% (medium)

Question Stats: 70% (02:16) correct 30% (02:40) wrong based on 214 sessions

### HideShow timer Statistics

Integer y is the least common multiple of 98, 220, and 270. Which of the following is not a factor of y?

A. 40
B. 90
C. 140
D. 330
E. 490

_________________
Senior Manager  G
Joined: 19 Apr 2016
Posts: 260
Location: India
GMAT 1: 570 Q48 V22
GMAT 2: 640 Q49 V28
GPA: 3.5
WE: Web Development (Computer Software)
Integer y is the least common multiple of 98, 220, and 270. Which of  [#permalink]

### Show Tags

1
3
Bunuel wrote:
Integer y is the least common multiple of 98, 220, and 270. Which of the following is not a factor of y?

A. 40
B. 90
C. 140
D. 330
E. 490

prime factors of 98 = $$2*7^2$$
prime factors of 220 = $$2^2*5*11$$
prime factors of 270 = $$2*3^3*5$$

LCM of 98, 220, and 270 =
$$2^2*3^3*5*7^2$$

all the options i.e 90, 140, 330 and 490 can be obtained using the prime factors of LCM of 98, 220, and 270 except 40

Hence option A is correct
Hit Kudos if you liked it Director  G
Joined: 02 Sep 2016
Posts: 620
Re: Integer y is the least common multiple of 98, 220, and 270. Which of  [#permalink]

### Show Tags

1
1
LCM (y)= 2^2.3^3.7^2.5^1.11^1

Only option A (40) contains 2^3 and the maximum power of 2 in LCM is 2.

Current Student D
Joined: 12 Aug 2015
Posts: 2516
Schools: Boston U '20 (M)
GRE 1: Q169 V154 Re: Integer y is the least common multiple of 98, 220, and 270. Which of  [#permalink]

### Show Tags

1
LCM(98, 220, and 270) -> 2^2*7^2*5*3^3*11
Lets check each option one by one until we get a number that isnt a factor.

A) 40 => 2^3*5
We don't have 2^3 in y
Hence this is not a factor.

Bingo.

SMASH THAT A.

_________________
Intern  B
Joined: 31 May 2018
Posts: 13
Location: India
GPA: 4
Re: Integer y is the least common multiple of 98, 220, and 270. Which of  [#permalink]

### Show Tags

LCM of 98, 220, 270 = $$2^{2}$$ * $$3^{2}$$ * 5 * $$7^{2}$$ * 11 = 97,020

* $$\frac{97020}{40}$$ = 2,425.5 (not divisible)

* $$\frac{97020}{90}$$ = 1078

* $$\frac{97020}{140}$$ = 693

* $$\frac{97020}{330}$$ = 294

* $$\frac{97020}{490}$$ = 198

Hence, Option (A) is the correct answer.
Non-Human User Joined: 09 Sep 2013
Posts: 15598
Re: Integer y is the least common multiple of 98, 220, and 270. Which of  [#permalink]

### Show Tags

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.
_________________ Re: Integer y is the least common multiple of 98, 220, and 270. Which of   [#permalink] 15 May 2020, 19:02

# Integer y is the least common multiple of 98, 220, and 270. Which of  