a, b, c and d are consecutive integers such that the product : GMAT Data Sufficiency (DS)
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# a, b, c and d are consecutive integers such that the product

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a, b, c and d are consecutive integers such that the product [#permalink]

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05 Nov 2012, 06:01
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$$a$$, $$b$$, $$c$$ and $$d$$ are consecutive integers such that the product $$abcd=5040$$, what is the value of $$d$$?

(1) $$d$$ is prime
(2) $$a>b>c>d$$
[Reveal] Spoiler: OA

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Re: a, b, c and d are consecutive integers such that the product [#permalink]

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05 Nov 2012, 07:04
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Factorize:

5040
= $$2^4X3^2X5X7$$
=7x8x9x10

A: If d is a prime, only possible value is 7. - Sufficient.
B: a>b>c>d => d = 7 - Sufficient

Am I missing something ?
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Re: a, b, c and d are consecutive integers such that the product [#permalink]

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05 Nov 2012, 08:08
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rajathpanta wrote:
a,b,c and d are consecutive integers such that the product abcd=5040, what is the value of d?

(1) d is prime
(2) a>b>c>d

Question says,

abcd =5040
thus
a,b,c and d could be 7,8,9 and 10 or -7, -8, -9, -10 because

7*8*9*10 = 5040
and also
(-7)*(-8)*(-9)*(-10)=5040

Statement 1: d is prime. Clearly d is 7, as prime can not be negative. Sufficient

Statement 2: a>b>c>d => d could be 7 or -10. Not sufficient.

Hence ans A it is.
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Last edited by Vips0000 on 05 Nov 2012, 08:09, edited 1 time in total.
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Re: a, b, c and d are consecutive integers such that the product [#permalink]

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05 Nov 2012, 08:08
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ConnectTheDots wrote:
Factorize:

5040
= $$2^4X3^2X5X7$$
=7x8x9x10

A: If d is a prime, only possible value is 7. - Sufficient.
B: a>b>c>d => d = 7 - Sufficient

Am I missing something ?

yes, possibility of negative numbers
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Re: a, b, c and d are consecutive integers such that the product [#permalink]

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05 Nov 2012, 08:38
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Yes thats the mean little trick there. You will have to consider the negative numbers too.
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Re: a, b, c and d are consecutive integers such that the product [#permalink]

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21 Sep 2014, 07:33
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Re: a, b, c and d are consecutive integers such that the product [#permalink]

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31 May 2015, 00:10
rajathpanta wrote:
a, b, c and d are consecutive integers such that the product abcd=5040, what is the value of d?

(1) d is prime
(2) a>b>c>d

In that case, answer should be E because with stmt 1 again, d value is either 7 or -7.
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Re: a, b, c and d are consecutive integers such that the product [#permalink]

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31 May 2015, 05:09
sinhap07 wrote:
rajathpanta wrote:
a, b, c and d are consecutive integers such that the product abcd=5040, what is the value of d?

(1) d is prime
(2) a>b>c>d

In that case, answer should be E because with stmt 1 again, d value is either 7 or -7.

d is a prime number, so it cannot be -7. Only positive integers can be primes (the smallest prime is 2).
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Re: a, b, c and d are consecutive integers such that the product [#permalink]

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01 Jun 2015, 09:27
Hi Bunuel,

Does that mean the anwer is wrong.

Bunuel wrote:
sinhap07 wrote:
rajathpanta wrote:
a, b, c and d are consecutive integers such that the product abcd=5040, what is the value of d?

(1) d is prime
(2) a>b>c>d

In that case, answer should be E because with stmt 1 again, d value is either 7 or -7.

d is a prime number, so it cannot be -7. Only positive integers can be primes (the smallest prime is 2).

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Re: a, b, c and d are consecutive integers such that the product [#permalink]

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01 Jun 2015, 09:40
shriramvelamuri wrote:
Hi Bunuel,

Does that mean the anwer is wrong.

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No, the answer is still A.
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The product of consecutive integers a, b, c, and d is 5,040. What is [#permalink]

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21 Jul 2016, 04:03
The product of consecutive integers a, b, c, and d is 5,040. What is the value of d?

(1) d is prime

(2) d < c < b < a
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Re: The product of consecutive integers a, b, c, and d is 5,040. What is [#permalink]

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21 Jul 2016, 05:56
Bunuel wrote:
The product of consecutive integers a, b, c, and d is 5,040. What is the value of d?

(1) d is prime

(2) d < c < b < a

Given product of consecutive integers a, b, c, and d is 5,040 then we get 7 * 8* 9* 10..

1. d is prime => and only prime in this series is 7...Sufficient.

2. d < c < b < a then it has to be 7 < 8 < 9 < 10... we get d as 7...Sufficient.

IMO D is the correct answer...Both choices are independently sufficient.
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Re: The product of consecutive integers a, b, c, and d is 5,040. What is [#permalink]

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21 Jul 2016, 06:33
a*b*c*d=5040
also
5040=2^4*3^2*5*7
or,
5040=10*9*8*7

(1) d is prime

d=7 ---sufficient !!

(2) d < c < b < a

d=7 ---sufficient !!

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Re: The product of consecutive integers a, b, c, and d is 5,040. What is [#permalink]

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21 Jul 2016, 07:50
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Bunuel wrote:
The product of consecutive integers a, b, c, and d is 5,040. What is the value of d?

(1) d is prime

(2) d < c < b < a

Factors of 5,040= 10*9*8*7

(1) d is prime. Only prime number in factors is 7.

Sufficient.

(2) d < c < b < a
d is the smallest number, i.e. 7. Sufficient.

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Re: The product of consecutive integers a, b, c, and d is 5,040. What is [#permalink]

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23 Jul 2016, 09:22
Bunuel wrote:
The product of consecutive integers a, b, c, and d is 5,040. What is the value of d?

(1) d is prime

(2) d < c < b < a

Consecutive integers will be 7,8,9,10 OR -7,-8,-9,-10

Statement 1:d is prime-sufficient-only 7 is prime
Statement 2:D is the smallest:Not sufficient:d can be -10 or 7

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Re: The product of consecutive integers a, b, c, and d is 5,040. What is [#permalink]

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23 Jul 2016, 17:29
Unless I missed something the same question was already present and indeed KS15 is right and the answer was A)
Nice one.

a-b-c-and-d-are-consecutive-integers-such-that-the-product-141920.html
Re: The product of consecutive integers a, b, c, and d is 5,040. What is   [#permalink] 23 Jul 2016, 17:29
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