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Math Help - Special Integers Help!

  1. #1
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    Special Integers Help!

    This is the question i have to solve ..

    I am thinking of 25 numbers ,all of which can be divided by 1000 .these numbers are no smaller than 1,000 but no greater than 1,000,000



    Does anybody know this..?

    Please Help! ..
    Last edited by Max13; February 16th 2009 at 12:08 AM.
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  2. #2
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    Quote Originally Posted by Max13 View Post
    This is the question i have to solve ..

    I am thinking of 25 numbers ,all of which can be divided by 1000 .these numbers are no smaller than 1,000 but no greater than 1,000.000
    ...
    The numbers in question must have

    at least: 4 digits
    at most: 6 digits
    and: the leading digits must be unequal to zero
    and: the last three digits must be zeros.

    And now you have the choice...
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  3. #3
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    Thanks..

    Hey..thanks for your replies... but can you tell me those 25 numbers, snice my maths professor pointed out that only 25 such numbers are possible!


    Really appreicate your help..
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  4. #4
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    Quote Originally Posted by Max13 View Post
    Hey..thanks for your replies... but can you tell me those 25 numbers, snice my maths professor pointed out that only 25 such numbers are possible!


    Really appreicate your help..
    If that is true, that there are no more than 25 numbers that fit this problem, then I'm reading something wrong and earboth is too. When you write in the original post, bigger than 1,000 and smaller than 1,000.000 , is that last number supposed to be 1,000,000? You wrote a 1 then a comma then three zeros then a period then three more zeros. Is that what you meant to write?
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  5. #5
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    OOps.. My bad ..it was supposed to be 1,000,000 ..And ya only 25 numbers possible!..


    Thanks for taking your time out for me ADMIn..
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  6. #6
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    Quote Originally Posted by Max13 View Post
    Hey..thanks for your replies... but can you tell me those 25 numbers, snice my maths professor pointed out that only 25 such numbers are possible!

    Really appreicate your help..
    If there are only 25 such numbers then there is an additional condition missing with the text of your question.

    All nummbers between 1000 and 999000 are smaller than one million, greater than thousand and are divisible by 1000. With your question you'll get 999 numbers which satisfy the given conditions.

    By the way: When you wrote:

    ...these numbers are no smaller than 1,000 but no greater than 1,000.000 ...

    the decimal point in the last number is actually a comma, right?
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  7. #7
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    i needed some help on this too

    i have been wanting to know the answer to this question as well. these numbers are what i have found on the net so far.

    1,000,000
    999,000
    750,000
    500,000
    300,000
    72,000(hidden) *i found it written just like that.
    64,000
    27,000
    18,000
    11,000
    7,000
    3,000
    i dont know how these answers were figured out, like i said i just found them and was just curious to know the answers . thanks for your help
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  8. #8
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    1 40000
    2 80000
    3 120000
    4 160000
    5 200000
    6 240000
    7 280000
    8 320000
    9 360000
    10 400000
    11 440000
    12 480000
    13 520000
    14 560000
    15 600000
    16 640000
    17 680000
    18 720000
    19 760000
    20 800000
    21 840000
    22 880000
    23 920000
    24 960000
    25 1000000
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