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Thread: With three fives make 6

  1. #1
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    With three fives make 6

    Use three 5s and no other digits to make an expression that equals 6.

    You can use these only:

    parentheses, +, -, /, *, regular factorial sign, square root symbol (or "sqrt"), decimal point (no repeating decimal use), concatenation of digits


    I'll start if off:

    5 + 5/5 = 6


    I am looking for at least three other primitive* solutions.





    * For example, "5/5 + 5 = 6" would not be another primitive solution.
    Last edited by greg1313; Jun 1st 2019 at 09:55 AM.
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  2. #2
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    Re: With three fives make 6

    **5 + (5 - 5)! = 6

    5.5 + .5 = 6
    **
    Last edited by Debsta; Jun 1st 2019 at 05:25 PM.
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  3. #3
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    Re: With three fives make 6

    Quote Originally Posted by Debsta View Post
    **5 + (5 - 5)! = 6

    5.5 + .5 = 6
    **
    Those two solutions are two of the remaining three solutions that I also have.
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  4. #4
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    Re: With three fives make 6

    Here's another one:
    **5 + .5 + .5 = 6, I'd say that is different to 5.5 + .5**
    What about:
    **5 + (5/5)!**
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  5. #5
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    Re: With three fives make 6

    Quote Originally Posted by Debsta View Post
    Here's another one:
    **5 + .5 + .5 = 6, I'd say that is different to 5.5 + .5**

    The above would be my third solution. I agree it is
    different compared to the one next to it.



    What about:
    **5 + (5/5)!**
    I would not count the second one as a primitive solution, because
    the factorial sign could be dropped to achieve the same value.



    You have met the requirements for this thread.
    Last edited by greg1313; Jun 2nd 2019 at 08:53 AM.
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