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 Your Progress

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.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 350,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

Q can only be 1, and the answer is (D) - both statements together are sufficient.

1 doesn't say that P and Q are both greater than 10 - although you could easily be misled into assuming this.

I think that the factors of the product of two primes can only be those primes (plus the number itself and 1). Q^3 can't be both a prime and a "cube" of anything other than one. So it must be 1.

Re: DS: intresting DS [#permalink]
28 Nov 2007, 10:05

GMAT TIGER wrote:

If P & Q are positive integers, what is the value of Q ?

1. S is the product of two prime numbers greater than 10 2. S = P x Q^3

1: doesnt tell us anything about P or Q. Insuff.

2: Doesnt tell us anything about what S is. S could be 16 and p and q could be 2. thus 2^4. Or S could be 81 Thus 3^4 p=q. there is no way of knowing the value of Q on S2 alone.

together since we know that S is the product of two prime numbers greater than 10. P*Q^3---> Q must be 1. b/c if it were any other integer then P*Q^3 would not equal S. This essentially means that S=P.

Q can only be 1, and the answer is (D) - both statements together are sufficient.

1 doesn't say that P and Q are both greater than 10 - although you could easily be misled into assuming this.

I think that the factors of the product of two primes can only be those primes (plus the number itself and 1). Q^3 can't be both a prime and a "cube" of anything other than one. So it must be 1.

I don't understand. Where's the trick? To me it only says that both primes are greater than 10. Please explain

Q can only be 1, and the answer is (D) - both statements together are sufficient.

1 doesn't say that P and Q are both greater than 10 - although you could easily be misled into assuming this.

I think that the factors of the product of two primes can only be those primes (plus the number itself and 1). Q^3 can't be both a prime and a "cube" of anything other than one. So it must be 1.

GMAT TIGER wrote:

GMAT TIGER wrote:

If P & Q are positive integers, what is the value of Q ?

1. S is the product of two prime numbers greater than 10 2. S = P x Q^3

OA is B. i got this question from here.

since S = P Q^3 and S is a product of two primes grater than 10, P is a multiple of those primes and Q should be 1.

Q can only be 1, and the answer is (D) - both statements together are sufficient.

1 doesn't say that P and Q are both greater than 10 - although you could easily be misled into assuming this.

I think that the factors of the product of two primes can only be those primes (plus the number itself and 1). Q^3 can't be both a prime and a "cube" of anything other than one. So it must be 1.

GMAT TIGER wrote:

GMAT TIGER wrote:

If P & Q are positive integers, what is the value of Q ?

1. S is the product of two prime numbers greater than 10 2. S = P x Q^3

OA is B. i got this question from here.

since S = P Q^3 and S is a product of two primes grater than 10, P is a multiple of those primes and Q should be 1.

How is it B? All S2 says is that S=P x Q^3? We don't know if S is the product of two primes when taking S2 alone.

As I said above Q must be 1. But we can't deduce that from statement 2 alone...????????

Harvard asks you to write a post interview reflection (PIR) within 24 hours of your interview. Many have said that there is little you can do in this...