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If K is an integer and 2 < K < 8, what is the value of K ?
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If K is an integer and 2 < K < 8, what is the value of K ? [#permalink] New post  31 Jan 2008, 18:32
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If K is an integer and 2 < K < 8, what is the value of K ?

(1) K is a factor of 30.
(2) K is a factor of 12.
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manulath
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Re: If k is an integer and 2 < k < 8, what is the value of k ? [#permalink] New post  26 Jul 2012, 03:34
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summer101 wrote:
If k is an integer and 2 < k < 8, what is the value of k ?

(1) k is a factor of 30.
(2) k is a factor of 12

The answer given is E.

from statement 1 : k can be 2,3,5. k>2, so 3 or 5. NS
from statement 2 : k can be 2,3. k>2, so 3. Sufficient

Hence my answer was B. Am i missing something :(


You probably misunderstood and worked for only primes.
The question stem states integers.

from statement 1 : Factors of 30 that are between 2 and 8 are: 3, 5 and 6. Not Sufficient

from statement 2: Factors of 12 that are between 2 and 8 are: 3 and 6. Not Sufficient

Both taken together: k can be either 3 or 6. Not Sufficient.

You missed 6.
Hope that helps.
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GMATBLACKBELT
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Re: If K is an integer and 2 < K < 8, what is the value of K ? [#permalink] New post  31 Jan 2008, 20:16
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blog wrote:
If K is an integer and 2<K<8, what is the value of K ?

1. K is a factor of 30.
2. K is a factor of 12.


1: k=3,5,6 Insuff

2: k=3,4,6


Together k=3 or 6


E
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pmenon
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Re: If K is an integer and 2 < K < 8, what is the value of K ? [#permalink] New post  31 Jan 2008, 20:42
E

from stat 1, k is 3, 5 or 6

from stat 2, k is either 3,4 or 6

together, k is either 3 or 6.
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If k is an integer and 2 < k < 8, what is the value of k ? [#permalink] New post  26 Jul 2012, 01:55
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If k is an integer and 2 < k < 8, what is the value of k ?

(1) k is a factor of 30.
(2) k is a factor of 12

Show Spoiler
The answer given is E.

from statement 1 : k can be 2,3,5. k>2, so 3 or 5. NS
from statement 2 : k can be 2,3. k>2, so 3. Sufficient

Hence my answer was B. Am i missing something :(
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summer101
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Re: If k is an integer and 2 < k < 8, what is the value of k ? [#permalink] New post  26 Jul 2012, 05:29
Ohh, thanks. For some unknown reason i thought the factor is prime. Thanks again.
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Re: If k is an integer and 2 < k < 8, what is the value of k ? [#permalink] New post  23 May 2013, 05:12
summer101 wrote:
If k is an integer and 2 < k < 8, what is the value of k ?

(1) k is a factor of 30.
(2) k is a factor of 12

The answer given is E.

from statement 1 : k can be 2,3,5. k>2, so 3 or 5. NS
from statement 2 : k can be 2,3. k>2, so 3. Sufficient

Hence my answer was B. Am i missing something :(


hi mate, what you are missing is 5, 6 they too are factors mate :)
and 3, 6 are our traps :)
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Re: If K is an integer and 2 < K < 8, what is the value of K ? [#permalink] New post  30 Sep 2017, 20:45
St I k= 3,5,6 insufficient
St II k = 3,4,6 insufficient
St I and II k = 3, 6 insufficient

Hence Option E is correct

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Re: If K is an integer and 2 < K < 8, what is the value of K ? [#permalink] New post  23 Nov 2017, 17:48
Quote:
If K is an integer and 2<K<8, what is the value of K ?

1. K is a factor of 30.
2. K is a factor of 12.


Bunuel VeritasPrepKarishma niks18


Is B incorrect since Q mentions about factors (ie no when divided by factor will leave remainder as zero)
and not prime factors (B's distinct prime factors shall be 2 and 3) Since only 3 falls in range
given by Q, B would have been correct answer choice.
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Re: If K is an integer and 2 < K < 8, what is the value of K ? [#permalink] New post  23 Nov 2017, 20:09
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adkikani wrote:
Quote:
If K is an integer and 2<K<8, what is the value of K ?

1. K is a factor of 30.
2. K is a factor of 12.


Bunuel VeritasPrepKarishma niks18


Is B incorrect since Q mentions about factors (ie no when divided by factor will leave remainder as zero)
and not prime factors (B's distinct prime factors shall be 2 and 3) Since only 3 falls in range
given by Q, B would have been correct answer choice.


Yes. The factors of 12 are 1, 2, 3, 4, 6, and 12. While prime factors of 12 are 2 and 3.
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Re: If K is an integer and 2 < K < 8, what is the value of K ? [#permalink] New post  26 Feb 2019, 02:27
(1) The factors of 30 are {1, 2, 3, 5, 6, 10, 15, 30}

Factors that are between 2 and 8 are {3, 5, 6} --> We have 3 choices --> Not Suff.

(2) The factors of 12 are {1, 2, 3, 4, 6, 12}

Factors that are between 2 and 8 are {3, 4, 6} --> We have 3 choices --> Not Suff.

(1)(2) k=3 and k=6 are the two possible values for k --> Not suff

Answer E
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Re: If K is an integer and 2 < K < 8, what is the value of K ? [#permalink] New post  08 Nov 2020, 09:25
It's a good idea to use the factor tree in order to find factors quickly. Here' an explanation of this 2 < k < 8 question on YouTube:

https://www.youtube.com/watch?v=z5jAa4p ... g1UVB6AiDY
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Re: If K is an integer and 2 < K < 8, what is the value of K ? [#permalink]
08 Nov 2020, 09:25
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