Count up with the Five Fives puzzle

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generalz
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Count up with the Five Fives puzzle

Postby generalz » Wed Jun 22, 2016 11:47 am UTC

This one will be a bit different from the Four Fours puzzle. Here, we will try to get as high as possible with exactly five fives.

On the first page (from the numbers 0 to 40), you may ONLY use the following:
  • Addition (10 = 5 + 5)
  • Subtraction (50 = 55 - 5)
  • Multiplication (25 = 5 * 5)
  • Division (1 = 5 / 5)
  • Exponentiation (3125 = 55)
  • Concatenation of 5's (60 = 55 + 5)
  • Decimal separator (10 = 5 / .5)

For each new page (or 40 posts), you may introduce a new function or operator (!, !!, nCk, Fibonacci numbers... You can check the previous thread for more functions)

New functions allowed:
  • Factorial (5! = 120)
  • Root symbol (√(5 * 5) = 5, .5√(5 + 5) = 100)
  • Double Factorial (5!! = 15)

Some restrictions:
  • No floor or ceiling
  • No function that could make the game too easy (Nth prime, f(x) = x + 1...)

Any other ideas are welcome!

I will start with:

0 = (5 - 5) * (5 + 5 / .5)
Last edited by generalz on Fri Jul 22, 2016 1:49 pm UTC, edited 4 times in total.

username5243
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Re: Count up with the Five Fives puzzle

Postby username5243 » Wed Jun 22, 2016 2:05 pm UTC

1 = 55/5-5-5

I wonder which of these could go the furthest:

Three Threes
Four Fours
Five Fives
Six Sixes
Seven Sevens
Eight Eights
Nine Nines
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Beavertails
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Re: Count up with the Five Fives puzzle

Postby Beavertails » Wed Jun 22, 2016 2:43 pm UTC

2 = (5+5) / 5 / (5/5)
flicky1991 wrote:Forum Games: Beavertails likes pie.

generalz
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Re: Count up with the Five Fives puzzle

Postby generalz » Wed Jun 22, 2016 2:53 pm UTC

3 = (5 * 5 - 5 - 5) / 5

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Re: Count up with the Five Fives puzzle

Postby Beavertails » Wed Jun 22, 2016 2:55 pm UTC

4 = 5 - (5/5) * (5/5)
flicky1991 wrote:Forum Games: Beavertails likes pie.

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Re: Count up with the Five Fives puzzle

Postby username5243 » Wed Jun 22, 2016 2:56 pm UTC

4 = (5+5+5+5)/5
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Beavertails
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Re: Count up with the Five Fives puzzle

Postby Beavertails » Wed Jun 22, 2016 2:59 pm UTC

5 = 55-55 + 5

6 = 55/55 + 5
flicky1991 wrote:Forum Games: Beavertails likes pie.

generalz
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Re: Count up with the Five Fives puzzle

Postby generalz » Wed Jun 22, 2016 3:01 pm UTC

7 = (5 * 5 + 5 + 5) / 5

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emlightened
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Re: Count up with the Five Fives puzzle

Postby emlightened » Wed Jun 22, 2016 3:03 pm UTC

7 = 5.5+.5+5/5

8 = (.5*.5*.5)-(5/5)
Last edited by emlightened on Wed Jun 22, 2016 3:08 pm UTC, edited 1 time in total.

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Beavertails
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Re: Count up with the Five Fives puzzle

Postby Beavertails » Wed Jun 22, 2016 3:07 pm UTC

8 = (5 + 5 + 5) / 5 + 5
flicky1991 wrote:Forum Games: Beavertails likes pie.

generalz
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Re: Count up with the Five Fives puzzle

Postby generalz » Wed Jun 22, 2016 3:10 pm UTC

We have the first ninja already :) I'll post 2 values then

9 = (5 * (5 + 5) - 5) / 5
10 = (5 - .5) / .5 + .5 + .5

PS: nice 8 emlightened
Last edited by generalz on Wed Jun 22, 2016 3:13 pm UTC, edited 1 time in total.

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Re: Count up with the Five Fives puzzle

Postby emlightened » Wed Jun 22, 2016 3:12 pm UTC

9 = (55-5-5)/5

10 = ((5-5)*5+5)/.5


And then I got ninja'd again -_-.

11 = 55/5+5-5
Last edited by emlightened on Wed Jun 22, 2016 3:13 pm UTC, edited 1 time in total.

"Therefore it is in the interests not only of public safety but also public sanity if the buttered toast on cats idea is scrapped, to be replaced by a monorail powered by cats smeared with chicken tikka masala floating above a rail made from white shag pile carpet."

generalz
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Re: Count up with the Five Fives puzzle

Postby generalz » Wed Jun 22, 2016 3:13 pm UTC

12 = 5 + 5 + (5 + 5) / 5

username5243
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Re: Count up with the Five Fives puzzle

Postby username5243 » Wed Jun 22, 2016 3:13 pm UTC

13 = (5*5+5/5)*.5
Last edited by username5243 on Wed Jun 22, 2016 3:15 pm UTC, edited 1 time in total.
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emlightened
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Re: Count up with the Five Fives puzzle

Postby emlightened » Wed Jun 22, 2016 3:14 pm UTC

13 = .5*(5*5+5/5)

14 = 5+5+5-5/5

"Therefore it is in the interests not only of public safety but also public sanity if the buttered toast on cats idea is scrapped, to be replaced by a monorail powered by cats smeared with chicken tikka masala floating above a rail made from white shag pile carpet."

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Beavertails
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Re: Count up with the Five Fives puzzle

Postby Beavertails » Wed Jun 22, 2016 3:16 pm UTC

15 = 5+5+5+5-5
flicky1991 wrote:Forum Games: Beavertails likes pie.

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Re: Count up with the Five Fives puzzle

Postby username5243 » Wed Jun 22, 2016 3:16 pm UTC

15 = 5+5+5+5/5
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Re: Count up with the Five Fives puzzle

Postby Beavertails » Wed Jun 22, 2016 3:19 pm UTC

16 = 5+5+5 + 5/5

Oops. I need to do 17 as well.

17 = (55 + 5)/5 + 5
flicky1991 wrote:Forum Games: Beavertails likes pie.

generalz
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Re: Count up with the Five Fives puzzle

Postby generalz » Wed Jun 22, 2016 3:24 pm UTC

18 = (5 + 5 - 5 / 5) / .5

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Re: Count up with the Five Fives puzzle

Postby Beavertails » Wed Jun 22, 2016 3:25 pm UTC

19 = (5 * 5) - 5 - 5/5
flicky1991 wrote:Forum Games: Beavertails likes pie.

generalz
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Re: Count up with the Five Fives puzzle

Postby generalz » Wed Jun 22, 2016 3:27 pm UTC

20 = (5 / 5) / (.5 / (5 + 5))

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Re: Count up with the Five Fives puzzle

Postby Beavertails » Wed Jun 22, 2016 3:28 pm UTC

21 = (5 * 5) - 5 + 5/5

(19 and 21 should be very similar, right? :D )
Last edited by Beavertails on Wed Jun 22, 2016 3:29 pm UTC, edited 1 time in total.
flicky1991 wrote:Forum Games: Beavertails likes pie.

generalz
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Re: Count up with the Five Fives puzzle

Postby generalz » Wed Jun 22, 2016 3:28 pm UTC

22 = 5 * 5 - .5 - .5 * 5

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Beavertails
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Re: Count up with the Five Fives puzzle

Postby Beavertails » Wed Jun 22, 2016 3:30 pm UTC

23 = (5 * 5) - (.5 * 5) + .5
flicky1991 wrote:Forum Games: Beavertails likes pie.

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Sabrar
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Re: Count up with the Five Fives puzzle

Postby Sabrar » Wed Jun 22, 2016 6:32 pm UTC

24 = 5 * 5 - 55 - 5

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patzer
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Re: Count up with the Five Fives puzzle

Postby patzer » Thu Jun 23, 2016 12:35 am UTC

25 = 5 + 5 + 5 + 5 + 5
If it looks like a duck, and quacks like a duck, we have at least to consider the possibility that we have a small aquatic bird of the family Anatidae on our hands. –Douglas Adams

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Re: Count up with the Five Fives puzzle

Postby thunk » Thu Jun 23, 2016 12:46 am UTC

26=5*5+(5/5)^5
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Re: Count up with the Five Fives puzzle

Postby LucasBrown » Thu Jun 23, 2016 1:46 am UTC

27=5*5+((5+5)/5)

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Sabrar
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Re: Count up with the Five Fives puzzle

Postby Sabrar » Thu Jun 23, 2016 5:15 am UTC

28 = .5-5 - 5 + 5 / 5

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Re: Count up with the Five Fives puzzle

Postby thunk » Thu Jun 23, 2016 5:34 am UTC

29= 5*5+5-(5/5)
Free markets, free movement, free plops
Blitz on, my friends Quantized, GnomeAnne, and iskinner!
troo dat

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Re: Count up with the Five Fives puzzle

Postby Beavertails » Thu Jun 23, 2016 12:50 pm UTC

30 = 5 * 5 + 5 - 5 + 5
flicky1991 wrote:Forum Games: Beavertails likes pie.

generalz
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Re: Count up with the Five Fives puzzle

Postby generalz » Sat Jun 25, 2016 4:24 pm UTC

31 = (5 + 5 + 5 + .5) / .5

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patzer
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Re: Count up with the Five Fives puzzle

Postby patzer » Sun Jun 26, 2016 3:31 am UTC

32 = (.55)/(.55+5)
If it looks like a duck, and quacks like a duck, we have at least to consider the possibility that we have a small aquatic bird of the family Anatidae on our hands. –Douglas Adams

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Re: Count up with the Five Fives puzzle

Postby Nitrodon » Sun Jun 26, 2016 3:48 am UTC

33 = 55 * (.5 + .5/5)

generalz
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Re: Count up with the Five Fives puzzle

Postby generalz » Sun Jun 26, 2016 6:33 pm UTC

34 = .5-5 + 5 * .5 - .5

Nitrodon
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Re: Count up with the Five Fives puzzle

Postby Nitrodon » Wed Jun 29, 2016 5:06 am UTC

35 = 55 + 5 - 5*5

generalz
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Re: Count up with the Five Fives puzzle

Postby generalz » Wed Jun 29, 2016 2:53 pm UTC

36 = 55 / 5 + 5 * 5

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Beavertails
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Re: Count up with the Five Fives puzzle

Postby Beavertails » Wed Jun 29, 2016 7:24 pm UTC

Not sure if I did this right but...

37 = ( Γ(5) + Γ(5) ) - 55/5

Edited to add: I think this broke the rules of the first post for page 1 of the thread. I can try again...
flicky1991 wrote:Forum Games: Beavertails likes pie.

generalz
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Re: Count up with the Five Fives puzzle

Postby generalz » Thu Jun 30, 2016 8:02 am UTC

Indeed, please only use the basic functions described in the op. It is possible to build all numbers up to at least 66, I tested it :)

38 = (5 + 5 - .5) / .5 / .5

Hint 1:
Spoiler:
Notice 32 = 25 = (1/2)-5

Hint 2 (other method):
Spoiler:
Notice 37.5 = 5 * 7.5

Nitrodon
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Re: Count up with the Five Fives puzzle

Postby Nitrodon » Fri Jul 01, 2016 10:27 pm UTC

39 = (5 * 5 - 5.5) / .5


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