All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Numbers
From pie to numbers (Posted on 2015-12-27) Difficulty: 3 of 5
Let us use the first 3 digits of PI, i.e. 3,1,4 to create numbers from 1 to 50, using only basic math. operators.
Not all the digits must be used, but none can be repeated.

Examples (out of this range): 52= 13*4; 65=4^3+1; 84=14*3!

Only few numbers cannot be achieved.

Please show your list.

No Solution Yet Submitted by Ady TZIDON    
No Rating

Comments: ( Back to comment list | You must be logged in to post comments.)
Hints/Tips re(5): hint- a DejMar I'll chip in 59 | Comment 13 of 14 |
(In reply to re(4): hint- a DejMar I'll chip in 59 by Ady TZIDON)

I limited my solutions with (!) to subfactorials, factorials, and double factorials [and the initial given operations to the puzzle].

One can get quite far with the three numbers (there is a finite limit, though) using multifactorials in addition to the given operations. As an aid to values between 1 and 100 -- only using the number 4 with the given factorial-type functions:

 1 = !(SQRT(4))          
 2 = SQRT(4)             
 3 = SQRT((!4))          
 4 = 4              
 6 = (SQRT(!4))!       
 8 = 4!!            
 9 = !4             
16 = (4!!)!!!!!      
18 = (!4)!!!!!!       
24 =  4!            
27 = (!4)!!!!!       
32 = (4!!)!!!!           
36 = (!4)!!!!            
45 = (!4)!!!            
48 = (SQRT(!4)!)!!    
54 = (((SQRT(!4))!)!!!)!!!!!!!!!!!!!!! 
60 = ((SQRT(!4)!)!!!!)!!!!!!!
64 = ((4!!)!!!!!)!!!!!!!!!!!!
72 = (((SQRT((!4))!)!!!!)!!!!!! 
80 = (4!!)!!!
90 = (((SQRT(!4))!)!!!)!!!!!!!!!!!!!
96 = ((4!!)!!!!!)!!!!!!!!!!  

With the 1 and 3 available, with addition and subtraction (and 3!) to fill in the gaps between of following those numbers,  one see that one can reach and surpass 100 with the three digits.
    

Edited on December 30, 2015, 2:42 am
  Posted by Dej Mar on 2015-12-29 06:04:59

Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (3)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2017 by Animus Pactum Consulting. All rights reserved. Privacy Information