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# What is the greatest common divisor of positive integers m

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Director
Joined: 31 Aug 2004
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What is the greatest common divisor of positive integers m [#permalink]  22 Nov 2004, 06:50
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...
Manager
Joined: 28 Aug 2004
Posts: 205
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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.
GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4309
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B for me
Any 2 consecutive numbers have only 1 as common divisor
_________________

Best Regards,

Paul

Manager
Joined: 07 Nov 2004
Posts: 89
Location: London
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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
Director
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Hard to trap you buddies !

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