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Director
Joined: 16 May 2014
Posts: 592
Given Kudos: 0
GRE 1: Q165 V161
Practice Question #1-least prime number greater than 24
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29 May 2014, 01:26
29 May 2014, 01:26
Expert Reply
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Question Stats:
99% (00:14) correct
0% (00:00) wrong based on 14 sessions
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Quantity A
The least prime number greater than 24Quantity B
The greatest prime number less than 28(A) Quantity A is greater.
(B) Quantity B is greater.
(C) The two quantities are equal.
(D) The relationship cannot be determined from the information given.
Director
Joined: 16 May 2014
Posts: 592
Given Kudos: 0
GRE 1: Q165 V161
Re: Practice Question #1
[#permalink]
29 May 2014, 01:27
29 May 2014, 01:27
Expert Reply
Explanation
For the integers greater than 24, note that 25, 26, 27, and 28 are not prime numbers, but 29 is a prime number, as are 31 and many other greater integers. Thus, 29 is the least prime number greater than 24, and Quantity A is 29. For the integers less than 28, note that 27, 26, 25, and 24 are not prime numbers, but 23 is a prime number, as are 19 and several other lesser integers. Thus, 23 is the greatest prime number less than 28, and Quantity B is 23. Thus, the correct answer is Choice A, Quantity A is greater.
Re: Practice Question #1-least prime number greater than 24
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16 Jan 2018, 20:31
16 Jan 2018, 20:31
A is greater, A is 29
