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# What is the greatest common divisor of positive integers m

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Director
Joined: 31 Aug 2004
Posts: 606

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What is the greatest common divisor of positive integers m [#permalink]

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22 Nov 2004, 07:50
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

What is the greatest common divisor of positive integers m and n?

(1) m is a prime number.
(2) m and n are consecutive integers.

I do not have the OA...

Kudos [?]: 147 [0], given: 0

Manager
Joined: 28 Aug 2004
Posts: 205

Kudos [?]: 2 [0], given: 0

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22 Nov 2004, 08:14
1) tells us nothing about n.
2) GCD = 1

B.

What would it be if the question was:

What is the greatest common divisor of integers m and n?

(1) m is a prime number.
(2) m and n are consecutive integers.

Kudos [?]: 2 [0], given: 0

GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4285

Kudos [?]: 528 [0], given: 0

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22 Nov 2004, 08:17
B for me
Any 2 consecutive numbers have only 1 as common divisor
_________________

Best Regards,

Paul

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Manager
Joined: 07 Nov 2004
Posts: 89

Kudos [?]: 1 [0], given: 0

Location: London

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22 Nov 2004, 08:56
To add to the posts above.

(1) If m is prime then GCD of m and n is either m or 1.
(2) If m and n are consecutive integers then GCD = 1.

Hence B

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Director
Joined: 31 Aug 2004
Posts: 606

Kudos [?]: 147 [0], given: 0

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22 Nov 2004, 09:32
Hard to trap you buddies !

Kudos [?]: 147 [0], given: 0

22 Nov 2004, 09:32
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