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Thread: the wonder of mathematics

 
  1. 03-18-2015 #1
    Frank van den Eeden
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    Default the wonder of mathematics

    -
    this is not really a joke
    but still very interesting :

    13837 x (your age) x 73 =

    make the multiplication (you can use a calculator)
    amazing isn't it ?


    Frank.
    beste groeten - sincères salutations - kindest regards - atentamente - mit freundlichen Grüßen
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  2. 03-18-2015 #2
    danield
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    Default Re: the wonder of mathematics

    so interesting!!
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  3. 03-18-2015 #3
    ludmilak
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    Default Re: the wonder of mathematics

    hahah why does this happen? Anyone knows?
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  4. 03-19-2015 #4
    Salvadorm
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    Default Re: the wonder of mathematics

    Great, very interesting, I love math tricks like this.
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  5. 03-19-2015 #5
    Salvadorm
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    Default Re: the wonder of mathematics

    Quote Originally Posted by ludmilak View Post
    hahah why does this happen? Anyone knows?
    13837 x 73 = 1010101

    For any 2-digit number, let's call it AB, if you multiply it by 1010101, you get ABABABAB.

    This trick only works if your age is between 10 and 99.
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  6. 03-19-2015 #6
    Frank van den Eeden
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    Default Re: the wonder of mathematics

    also for ages 1 to 9
    so from 1 to 99 years of age
    when you are 100 or older, you get one bonus year !
    beste groeten - sincères salutations - kindest regards - atentamente - mit freundlichen Grüßen
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  7. 03-19-2015 #7
    Salvadorm
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    Default Re: the wonder of mathematics

    Yeah Frank, you are right, for an age 1 to 9 (let's call it A) you get A0A0A0A

    I found one that works with 3-digit age

    108911 x (your age) x 9191

    I Love Math ^_^
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  8. 03-20-2015 #8
    estefaniar
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    Default Re: the wonder of mathematics

    ¡Good explanation, Salvador!
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  9. 03-20-2015 #9
    alfredo.astort
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    Default Re: the wonder of mathematics

    Genious! very funny!

    "A mathematician is a device for turning coffee into theorems" (P. Erdos)
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  10. 03-24-2015 #10
    florenciag
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    Default Re: the wonder of mathematics

    Genial!!

    Gracias Salvadorm por tu explicacion!
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