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LCM and HCF Problems

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f2001290 Master | Next Rank: 500 Posts
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LCM and HCF Problems

Post Sun Jun 10, 2007 9:52 pm
G, M, and N are integers, M=X+6; G is the greatest common factor of M and N. G=?
1) N=2531
2) N=X+7

X and Y are positive integers. What is the maximum common divisor of X and Y?
a) X=Y+1
b) X is a multiple of 2

What is the greatest common factor of positive integers x and y?
1) The greatest common factor of and is 5
2) x and y are even

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Maciek Master | Next Rank: 500 Posts
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GMAT Score:
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Post Sat Aug 28, 2010 2:20 am
Hi!

Quote:
G, M, and N are integers, M=X+6; G is the greatest common factor of M and N. G=?
1) N=2531
2) N=X+7
IMO B
1) it is prime number
2) the greatest common factor is 1

hope it helps!

Best,
Maciek
Quote:
X and Y are positive integers. What is the maximum common divisor of X and Y?
a) X=Y+1
b) X is a multiple of 2

What is the greatest common factor of positive integers x and y?
1) The greatest common factor of and is 5
2) x and y are even

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