Five Fives/Table of 5s: Difference between revisions
From charlesreid1
(→Two 5s) |
(→One 5) |
||
| (69 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
Back to [[Five Fives]] | Back to [[Five Fives]] | ||
=Zero 5s= | |||
<math> | |||
1 = \ln{e} | |||
</math> | |||
<math> | |||
9 + 4 \sqrt{5} = \phi \left( \phi^5 \right) | |||
</math> | |||
<!-- | |||
<math> | |||
5 = \phi^6 - 8 \phi | |||
</math> | |||
<math> | |||
2 + \sqrt{5} = \phi^{3} | |||
</math> | |||
<math> | |||
-2 = e^{\pi i} + e^{-\pi i} | |||
</math> | |||
<math> | |||
1 = \phi + \overline{\phi} | |||
</math> | |||
<math> | |||
\sqrt{5} = \phi - \overline{\phi} | |||
</math> | |||
--> | |||
=One 5= | =One 5= | ||
| Line 6: | Line 40: | ||
<math> | <math> | ||
\sqrt{5} | |||
</math> | </math> | ||
<math> | <math> | ||
5 = | \phi^{n} \sqrt{5} = \phi^{n+1} + \phi^{n-1} | ||
</math> | </math> | ||
<math> | <math> | ||
-1 = \cos{ \left( 5 \pi \right) } | |||
</math> | |||
<math> | |||
0 = \sin{ \left( 5 \pi \right) } | |||
</math> | |||
<math> | |||
1 = x^{\sin{\left(5 \pi \right)}} | |||
</math> | |||
<math> | |||
2 = \phi \times \phi \times \phi - \sqrt{5} | |||
</math> | |||
<math> | |||
5 | |||
</math> | </math> | ||
<math> | |||
15 = 5!! | |||
</math> | |||
<math> | |||
120 = 5! | |||
</math> | |||
=Two 5s= | =Two 5s= | ||
| Line 31: | Line 87: | ||
<math> | <math> | ||
2 = \dfrac{ \ln{(5)} }{ \ln{(\sqrt{5})} } | 2 = \dfrac{ \ln{(5)} }{ \ln{(\sqrt{5})} } | ||
</math> | |||
<math> | |||
3 = \phi^5 - 5 \phi | |||
</math> | </math> | ||
| Line 39: | Line 99: | ||
<math> | <math> | ||
5 = \sqrt{5 \times 5} | 5 = \sqrt{5 \times 5} | ||
</math> | |||
<math> | |||
8 = \dfrac{ \ln{5} }{ \ln{\left( \sqrt{ \sqrt{ \sqrt{ 5 } } } \right) } } | |||
</math> | </math> | ||
| Line 46: | Line 110: | ||
<math> | <math> | ||
11 = \phi^5 - \dfrac{ | 11 = \phi^5 - \phi^{-5} | ||
</math> | |||
<math> | |||
16 = \dfrac{ \ln{5} }{ \ln{\left( \sqrt{ \sqrt{ \sqrt{ \sqrt{ 5 } } } } \right) } } | |||
</math> | </math> | ||
| Line 55: | Line 123: | ||
<math> | <math> | ||
25 = 5 \times 5 | 25 = 5 \times 5 | ||
</math> | |||
<math> | |||
32 = \dfrac{ \ln{5} }{ \ln{\left( \sqrt{ \sqrt{ \sqrt{ \sqrt{ \sqrt{ 5 } } } } } \right) } } | |||
</math> | </math> | ||
| Line 75: | Line 147: | ||
<math> | <math> | ||
3125 = 5^5 | 3125 = 5^5 | ||
</math> | |||
<math> | |||
11981655542024930675232002 = \phi^{5!} - \phi^{-5!} | |||
</math> | </math> | ||
| Line 81: | Line 157: | ||
</math> | </math> | ||
=Three 5s= | |||
<math> | <math> | ||
| Line 88: | Line 164: | ||
<math> | <math> | ||
\dfrac{ | \dfrac{3}{5} = \dfrac{1}{5} \left( \phi^5 - 5 \phi \right) | ||
</math> | |||
<math> | |||
\dfrac{25}{24} = \dfrac{5! + 5}{5!} | |||
</math> | </math> | ||
| Line 100: | Line 180: | ||
<math> | <math> | ||
3 = \log_{5}{(5! + 5)} | 3 = \log_{5}{( 5! + 5 )} | ||
</math> | </math> | ||
| Line 125: | Line 205: | ||
<math> | <math> | ||
6 = 5 + \dfrac{5}{5} | 6 = 5 + \dfrac{5}{5} | ||
</math> | |||
<math> | |||
7 = 5 + \dfrac{ \ln{ \left( 5 \right) } }{ \ln{ \left( \sqrt{5} \right) } } | |||
</math> | |||
<math> | |||
8 = \phi^5 - 5 \phi + 5 | |||
</math> | |||
<math> | |||
9 = 5 + \dfrac{ \ln{ \left( 5 \right) } }{ \ln{ \left( \sqrt{ \sqrt{ 5 } } \right) } } | |||
</math> | |||
<math> | |||
10 = \sqrt{5} \left( \sqrt{5} + \sqrt{5} \right) | |||
</math> | |||
<math> | |||
11 = \dfrac{55}{5} | |||
</math> | </math> | ||
<math> | <math> | ||
12 = \dfrac{5!}{5+5} | 12 = \dfrac{5!}{5+5} | ||
</math> | |||
<math> | |||
13 = 5!! - \dfrac{ \ln{ \left( 5 \right) } }{ \ln{ \left( \sqrt{5} \right) } } | |||
</math> | </math> | ||
<math> | <math> | ||
15 = 5 + 5 + 5 | 15 = 5 + 5 + 5 | ||
</math> | |||
<math> | |||
16 = \phi^{5} - \phi^{-5} + 5 | |||
</math> | |||
<math> | |||
18 = 5!! + \phi^{5} - 5 \phi | |||
</math> | |||
<math> | |||
19 = \dfrac{5!}{5} - 5 | |||
</math> | </math> | ||
| Line 141: | Line 257: | ||
<math> | <math> | ||
20 = \dfrac{ 5 \lg{5} }{ \lg{\left(\sqrt{\sqrt{5}}\right)} } | 20 = \dfrac{ 5 \lg{5} }{ \lg{\left(\sqrt{\sqrt{5}}\right)} } | ||
</math> | |||
<math> | |||
25 = \dfrac{ 5! + 5 }{5} | |||
</math> | |||
<math> | |||
25 = \dfrac{ \sqrt{5^5} }{ \sqrt{5} } | |||
</math> | |||
<math> | |||
25 = \sqrt{5} \left( \phi^5 + \phi^{-5} \right) | |||
</math> | |||
<math> | |||
25 = 5 + 5 + 5!! | |||
</math> | |||
<math> | |||
26 = \left( \phi^{5} - \phi{-5} \right) + 5!! | |||
</math> | |||
<math> | |||
29 = \dfrac{5!}{5} + 5 | |||
</math> | </math> | ||
| Line 148: | Line 288: | ||
<math> | <math> | ||
32 = \left( \dfrac{ \ln{5} }{ \ln{ \sqrt{ 5 } } } \right)^5 | |||
</math> | |||
<math> | |||
50 = 55 - 5 | |||
</math> | |||
<math> | |||
50 = 5 ( 5 + 5 ) | |||
</math> | |||
<math> | |||
55 = 5 \left(\phi^{5}-\phi^{-5}\right) | |||
</math> | </math> | ||
| Line 157: | Line 309: | ||
<math> | <math> | ||
95 = 5! - 5 \times 5 | 95 = 5! - 5 \times 5 | ||
</math> | |||
<math> | |||
96 = 5! - \dfrac{5!}{5} | |||
</math> | |||
<math> | |||
110 = 5! - 5 - 5 | |||
</math> | |||
<math> | |||
120 = 5! + 5 - 5 | |||
</math> | |||
<math> | |||
123 = \phi^5 - 5 \phi + 5! | |||
</math> | </math> | ||
| Line 165: | Line 333: | ||
<math> | <math> | ||
145 = 5! + 5 \times 5 | 145 = 5! + 5 \times 5 | ||
</math> | |||
<math> | |||
243 = \left( \phi^{5} - 5 \phi \right)^5 | |||
</math> | </math> | ||
<math> | <math> | ||
625 = \dfrac{5^5}{5} | 625 = \dfrac{5^5}{5} | ||
</math> | |||
<math> | |||
1024 = \left( \dfrac{ \ln{5} }{ \ln{ \sqrt{ \sqrt{5} } } } \right)^5 | |||
</math> | |||
<math> | |||
3005 = 5^5 - 5! | |||
</math> | |||
<math> | |||
9765625 = \left( 5 \times 5 \right)^5 | |||
</math> | </math> | ||
| Line 175: | Line 359: | ||
</math> | </math> | ||
==Four 5s | <math> | ||
298023223876953125 = 5^{5 \times 5} | |||
</math> | |||
=Four 5s= | |||
<math> | <math> | ||
| Line 215: | Line 403: | ||
<math> | <math> | ||
13 = \dfrac{5! - 55}{5} | 13 = \dfrac{5! - 55}{5} | ||
</math> | |||
<math> | |||
15 = \left( \log_{5}{ (5! + 5)^5 } \right) | |||
</math> | </math> | ||
| Line 223: | Line 415: | ||
<math> | <math> | ||
26 = \dfrac{5^5 - 5}{5!} | 26 = \dfrac{5^5 - 5}{5!} | ||
</math> | |||
<math> | |||
34 = \phi^{5 + 5} - 55 \phi | |||
</math> | </math> | ||
| Line 239: | Line 435: | ||
<math> | <math> | ||
50 = 5 \times 5 + 5 \times 5 | 50 = 5 \times 5 + 5 \times 5 | ||
</math> | |||
<math> | |||
52 = 55 - \phi^{5} + 5 \phi | |||
</math> | </math> | ||
| Line 247: | Line 447: | ||
<math> | <math> | ||
70 = 5! + 5 - 55 | 70 = 5! + 5 - 55 | ||
</math> | |||
<math> | |||
89 = \dfrac{ \phi \left( \phi^{5 + 5} \right) - 55 }{ \phi } | |||
</math> | |||
<math> | |||
120 = 5 \times 5 \times 5 - 5 | |||
</math> | |||
<math> | |||
123 = \phi^{5+5} + \dfrac{1}{\phi^{5+5}} | |||
</math> | |||
<math> | |||
125 = 5 \sqrt{5} \left( \phi^{5} + \phi{-5} \right) | |||
</math> | </math> | ||
| Line 254: | Line 470: | ||
<math> | <math> | ||
140 = 5! + (5 \times 5) - 5 | |||
</math> | |||
<math> | |||
150 = 5 \left( 5 \times 5 + 5 \right) | |||
</math> | |||
<math> | |||
160 = 5 \left( \dfrac{ \ln{5} }{ \ln{\sqrt{5}} } \right)^5 | |||
</math> | |||
<math> | |||
243 = \left( \log_{5}{(5! + 5)} \right) ^5 | |||
</math> | |||
<math> | |||
( 5_{5} )! = (10_{5})! = 440_{5} = 120_{10} | |||
</math> | |||
(5 base 5 is 10 base 5; 5 base 5 factorial is 440 base 5, or 120 base 10. No surprises here.) | |||
<math> | |||
505 = \dfrac{5^5}{5} - 5! | |||
</math> | |||
<math> | |||
605 = 55 \left( \phi^5 - \phi^{-5} \right) | |||
</math> | |||
<math> | |||
3000 = \left( 5^5 - 5 \right) - 5! | |||
</math> | |||
<math> | |||
3025 = 55 \times 55 | |||
</math> | |||
<math> | |||
3070 = 5^5 - 55 | |||
</math> | </math> | ||
<math> | <math> | ||
3100 = 5^5 - 5 \times 5 | |||
</math> | </math> | ||
<math> | <math> | ||
3125 = \dfrac{5 \times 5^5}{5} | |||
</math> | </math> | ||
Latest revision as of 11:46, 5 April 2025
Back to Five Fives
Zero 5s
$ 1 = \ln{e} $
$ 9 + 4 \sqrt{5} = \phi \left( \phi^5 \right) $
One 5
Various ways of arranging a single 5 to yield different numbers. (More limited than 4, of course...)
$ \sqrt{5} $
$ \phi^{n} \sqrt{5} = \phi^{n+1} + \phi^{n-1} $
$ -1 = \cos{ \left( 5 \pi \right) } $
$ 0 = \sin{ \left( 5 \pi \right) } $
$ 1 = x^{\sin{\left(5 \pi \right)}} $
$ 2 = \phi \times \phi \times \phi - \sqrt{5} $
$ 5 $
$ 15 = 5!! $
$ 120 = 5! $
Two 5s
$ 0 = \ln{ \dfrac{5}{5} } $
$ 1 = \dfrac{5}{5} $
$ 2 = \dfrac{ \ln{(5)} }{ \ln{(\sqrt{5})} } $
$ 3 = \phi^5 - 5 \phi $
$ 4 = \dfrac{ \ln{5} }{ \ln{\left( \sqrt{ \sqrt{ 5 } } \right) } } $
$ 5 = \sqrt{5 \times 5} $
$ 8 = \dfrac{ \ln{5} }{ \ln{\left( \sqrt{ \sqrt{ \sqrt{ 5 } } } \right) } } $
$ 10 = 5 + 5 $
$ 11 = \phi^5 - \phi^{-5} $
$ 16 = \dfrac{ \ln{5} }{ \ln{\left( \sqrt{ \sqrt{ \sqrt{ \sqrt{ 5 } } } } \right) } } $
$ 24 = \dfrac{5!}{5} $
$ 25 = 5 \times 5 $
$ 32 = \dfrac{ \ln{5} }{ \ln{\left( \sqrt{ \sqrt{ \sqrt{ \sqrt{ \sqrt{ 5 } } } } } \right) } } $
$ 55 $
$ 115 = 5! - 5 $
$ 125 = 5! + 5 $
$ 600 = 5 \times 5! $
$ 3125 = 5^5 $
$ 11981655542024930675232002 = \phi^{5!} - \phi^{-5!} $
$ 12696403353658275925965100847566516959580321051449436762275840000000000000 = 55! $
Three 5s
$ \dfrac{1}{2} = \dfrac{ \ln{ \left( \dfrac{5}{\sqrt{5}} \right) } }{ \ln{(5)} } $
$ \dfrac{3}{5} = \dfrac{1}{5} \left( \phi^5 - 5 \phi \right) $
$ \dfrac{25}{24} = \dfrac{5! + 5}{5!} $
$ 1 = \dfrac{ \sqrt{5 \times 5} }{ 5 } $
$ 2 = \dfrac{ \ln{(5)} }{ \ln{ \left( \dfrac{5}{\sqrt{5}} \right) } } $
$ 3 = \log_{5}{( 5! + 5 )} $
$ 4 = 5 - \dfrac{5}{5} $
$ 5 = 5 - 5 + 5 $
$ 5 = \sqrt[5]{5^5} $
$ 5 = \sqrt{ \dfrac{ \sqrt{5^5} }{ \sqrt{5} } } $
$ 5 = \dfrac{5 \times 5}{5} $
$ 6 = 5 + \dfrac{5}{5} $
$ 7 = 5 + \dfrac{ \ln{ \left( 5 \right) } }{ \ln{ \left( \sqrt{5} \right) } } $
$ 8 = \phi^5 - 5 \phi + 5 $
$ 9 = 5 + \dfrac{ \ln{ \left( 5 \right) } }{ \ln{ \left( \sqrt{ \sqrt{ 5 } } \right) } } $
$ 10 = \sqrt{5} \left( \sqrt{5} + \sqrt{5} \right) $
$ 11 = \dfrac{55}{5} $
$ 12 = \dfrac{5!}{5+5} $
$ 13 = 5!! - \dfrac{ \ln{ \left( 5 \right) } }{ \ln{ \left( \sqrt{5} \right) } } $
$ 15 = 5 + 5 + 5 $
$ 16 = \phi^{5} - \phi^{-5} + 5 $
$ 18 = 5!! + \phi^{5} - 5 \phi $
$ 19 = \dfrac{5!}{5} - 5 $
$ 20 = 5 \times 5 - 5 $
$ 20 = \dfrac{ 5 \lg{5} }{ \lg{\left(\sqrt{\sqrt{5}}\right)} } $
$ 25 = \dfrac{ 5! + 5 }{5} $
$ 25 = \dfrac{ \sqrt{5^5} }{ \sqrt{5} } $
$ 25 = \sqrt{5} \left( \phi^5 + \phi^{-5} \right) $
$ 25 = 5 + 5 + 5!! $
$ 26 = \left( \phi^{5} - \phi{-5} \right) + 5!! $
$ 29 = \dfrac{5!}{5} + 5 $
$ 30 = 5 \times 5 + 5 $
$ 32 = \left( \dfrac{ \ln{5} }{ \ln{ \sqrt{ 5 } } } \right)^5 $
$ 50 = 55 - 5 $
$ 50 = 5 ( 5 + 5 ) $
$ 55 = 5 \left(\phi^{5}-\phi^{-5}\right) $
$ 60 = \dfrac{5!}{ \left( \dfrac{\ln{5}}{\ln{\sqrt{5}}} \right) } $
$ 95 = 5! - 5 \times 5 $
$ 96 = 5! - \dfrac{5!}{5} $
$ 110 = 5! - 5 - 5 $
$ 120 = 5! + 5 - 5 $
$ 123 = \phi^5 - 5 \phi + 5! $
$ 130 = 5! + 5 + 5 $
$ 145 = 5! + 5 \times 5 $
$ 243 = \left( \phi^{5} - 5 \phi \right)^5 $
$ 625 = \dfrac{5^5}{5} $
$ 1024 = \left( \dfrac{ \ln{5} }{ \ln{ \sqrt{ \sqrt{5} } } } \right)^5 $
$ 3005 = 5^5 - 5! $
$ 9765625 = \left( 5 \times 5 \right)^5 $
$ 503284375 = 55^5 $
$ 298023223876953125 = 5^{5 \times 5} $
Four 5s
$ 1 = \dfrac{ \ln{ \left( \dfrac{5}{ \sqrt{5} } \right) } + \ln{5} }{ \ln{5} } $
$ 1 = \dfrac{5^5}{5^5} $
$ 1 = \dfrac{ 5 \times 5}{5 \times 5} $
$ 6 = \dfrac{ \ln{(5)} }{ \ln{(\sqrt{5})} } + \dfrac{ \ln{(5)} }{ \ln{(\sqrt{\sqrt{5}})} } $
$ 7 = \sqrt{ \dfrac{5!}{5} + (5 \times 5) } $
$ 8 = \left( \dfrac{ \ln{(5)} }{ \ln{(\sqrt{5})} } \right) \left( \dfrac{ \ln{(5)} }{ \ln{(\sqrt{\sqrt{5}})} } \right) $
$ 9 = 5 + 5 - \dfrac{5}{5} $
$ 11 = 5 + 5 + \dfrac{5}{5} $
$ 12 = \left( \dfrac{5!}{5} \right) \times \left( \dfrac{ \ln{\sqrt{5}} }{ \ln{5} } \right) $
$ 13 = \dfrac{5! - 55}{5} $
$ 15 = \left( \log_{5}{ (5! + 5)^5 } \right) $
$ 20 = 5 + 5 + 5 + 5 $
$ 26 = \dfrac{5^5 - 5}{5!} $
$ 34 = \phi^{5 + 5} - 55 \phi $
$ 35 = \dfrac{55 + 5!}{5} $
$ 35 = 5 \times 5 + 5 + 5 $
$ 49 = \dfrac{5!}{5} + (5 \times 5) $
$ 50 = 5 \times 5 + 5 \times 5 $
$ 52 = 55 - \phi^{5} + 5 \phi $
$ 60 = 5 \left( \dfrac{ 5! }{ 5 + 5 } \right) $
$ 70 = 5! + 5 - 55 $
$ 89 = \dfrac{ \phi \left( \phi^{5 + 5} \right) - 55 }{ \phi } $
$ 120 = 5 \times 5 \times 5 - 5 $
$ 123 = \phi^{5+5} + \dfrac{1}{\phi^{5+5}} $
$ 125 = 5 \sqrt{5} \left( \phi^{5} + \phi{-5} \right) $
$ 130 = 5 \times 5 \times 5 + 5 $
$ 140 = 5! + (5 \times 5) - 5 $
$ 150 = 5 \left( 5 \times 5 + 5 \right) $
$ 160 = 5 \left( \dfrac{ \ln{5} }{ \ln{\sqrt{5}} } \right)^5 $
$ 243 = \left( \log_{5}{(5! + 5)} \right) ^5 $
$ ( 5_{5} )! = (10_{5})! = 440_{5} = 120_{10} $
(5 base 5 is 10 base 5; 5 base 5 factorial is 440 base 5, or 120 base 10. No surprises here.)
$ 505 = \dfrac{5^5}{5} - 5! $
$ 605 = 55 \left( \phi^5 - \phi^{-5} \right) $
$ 3000 = \left( 5^5 - 5 \right) - 5! $
$ 3025 = 55 \times 55 $
$ 3070 = 5^5 - 55 $
$ 3100 = 5^5 - 5 \times 5 $
$ 3125 = \dfrac{5 \times 5^5}{5} $
$ 161051 = 11^5 = \left( \dfrac{55}{5} \right)^5 $