Math related question

Discussion in 'General Chat' started by mv808, Dec 26, 2007.

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  1. #1
    I have to figure out a password, which consists of 9 digits, and the only numbers used are 0 and 1. So, it can be 001101101, 101101111, etc. Can anyone tell me how many combinations there would be in total?
     
    mv808, Dec 26, 2007 IP
  2. deluxdon

    deluxdon Catch Me If You Can...!!!™ Staff

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    #2
    Are you planning to hack someone's account which consists of 9 digits (used only 0 and 1 numbers) :confused: :rolleyes:
     
    deluxdon, Dec 27, 2007 IP
  3. m42

    m42 Peon

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    #3
    The answer is 512.

    PM me if you'd care to learn the formula required in calculating the correct answer. My guess is you won't unless your teacher asks you to show your work or to produce the number combinations. :eek:

    Good luck!

    Alex.
     
    m42, Dec 27, 2007 IP
  4. wisdomtool

    wisdomtool Moderator Staff

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    #4
    It is 2^9 = 512 for 9 numbers 0 and 1.
     
    wisdomtool, Dec 27, 2007 IP
  5. kenneth03

    kenneth03 Peon

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    #5
    LOL, that was one quite easy one.. ;)
     
    kenneth03, Dec 27, 2007 IP
  6. m42

    m42 Peon

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    #6
    I wouldn't be too worried. In order to hack that sort of password by brute force, he first has to calculate the combinations. *g*

    In the off chance that someone has actually set their password to a combination of numbers that happens to meet the criteria he presented, the owner of that password probably deserves to be hacked.
     
    m42, Dec 27, 2007 IP
  7. wateva

    wateva Banned

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    #7
    wouldnt that be a brute force attack?
    isnt that illegal ?

    and its not just a math question, its a whole algorithm with great complexities!!
     
    wateva, Aug 29, 2008 IP
  8. georgejsilverberg

    georgejsilverberg Banned

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    #8
    10^9 combinations are possible.
     
    georgejsilverberg, Aug 29, 2008 IP
  9. Adam gilly

    Adam gilly Peon

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    #9
    there is 512 combinations...........i cant write them for u there.ya u opt for the easy one..........that u learn easily........:)
     
    Adam gilly, Sep 7, 2008 IP