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Thread: Find the two largest number

  1. #1
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    Smile Find the two largest number

    A * B = C

    A and B should contain only non zero digits
    C should contain only numbers like 10 or 100 or 1000 or 10000

    for eg 5*2=10
    25*4=100

    Find the largest of this kind???

    Thanks
    Manoj


  2. #2
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    Re: Find the two largest number

    where does the number ends?(i cant find the largest number)

    the given is of the type:
    5^n*2^n=10^n
    where n is the greatest.


  3. #3
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    Re: Find the two largest number

    Hey Barbie,

    U got the answer... Just put some values for n... u will get the answer...

    Thanks
    Manoj


  4. #4
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    Re: Find the two largest number

    manoj.. shall i put 12 for n?
    10^12=1 trillion.
    thats the biggest number i think.


  5. #5
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    Re: Find the two largest number

    But 5^12 and 2^12 contain digits with value zero...

    the question is A & B should not contain digits with value zero...

    Thanks
    Manoj


  6. #6
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    Re: Find the two largest number

    then it is 5^9 * 2^9.
    1953125*512=10^7.

    but i thought 5^n and 2^n should not have 0s at the end.


  7. #7
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    Re: Find the two largest number

    Barbie How about putting n=33...

    I found this number in http://www.shyamsundergupta.com/
    Because i found this as very interesting i posted here...
    You can also see lot of facinating number in the above website...
    I know this is very difficult to find because of trial and error method...

    Thanks
    Manoj


  8. #8
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    Re: Find the two largest number

    are you sure that n>33 will not satisfy this condition.


  9. #9
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    Re: Find the two largest number

    In windows calculator i can try upto 5^45.... Its not possible to go after that... so i think n=33 is the largest number of that type...
    You can check in the link given in my previous post...

    Thanks
    Manoj


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