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
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    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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    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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