Problem 166. Kaprekar numbers

Created by the cyclist

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","targetMode":"","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","targetMode":"","relationshipId":"rId2","target":"/matlab/output.xml"}],"parts":[{"partUri":"/matlab/document.xml","relationship":[],"contentType":"application/vnd.mathworks.matlab.code.document+xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<w:document xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"><w:body><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Test if the input is a Kaprekar number:</w:t></w:r><w:r><w:t> </w:t></w:r><w:hyperlink w:docLocation=\"http://mathworld.wolfram.com/KaprekarNumber.html\"><w:r><w:t>http://mathworld.wolfram.com/KaprekarNumber.html</w:t></w:r></w:hyperlink><w:r><w:t>. Return a logical true or false.</w:t></w:r></w:p></w:body></w:document>"},{"partUri":"/matlab/output.xml","contentType":"text/xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?><embeddedOutputs><metaData><evaluationState>manual</evaluationState><layoutState>code</layoutState><outputStatus>ready</outputStatus></metaData><outputArray type=\"array\"/><regionArray type=\"array\"/></embeddedOutputs>"}]}

Solve

Solution Stats

586 Solutions
243 Solvers

Last Solution submitted on Jul 17, 2021

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

Raihan Ahmed on 19 Nov 2015

Superb Problem

Jonathan Cratter on 2 Dec 2018

nnnnn

Solution Comments

Solution 903585

3 Comments

3 Comments

Grace O'Neil on 8 Jun 2016

I wish I could see this solution.

Tim on 9 Jun 2016

It contains the line "if x == 704 | x == 681319 | x==681320", so you are not missing anything deep.

the cyclist on 14 Jun 2016

Changed test suite to deny this "solution"

Solution 214423

2 Comments

2 Comments

Harish Maradana on 8 Mar 2013

703 not working

the cyclist on 9 Mar 2013

This solution only tests for divisibility by 9, not whether the number is a Kaprekar number.

Solution 66738

2 Comments

2 Comments

MD. MASRUL HUDA on 24 Jun 2012

this is no more coding but ...............

the cyclist on 14 Jun 2016

Changed test suite to deny this "solution"

Solution 14129

2 Comments

2 Comments

MD. MASRUL HUDA on 24 Jun 2012

this fake solution ,take the advantage of system

the cyclist on 14 Jun 2016

Changed test suite to deny this "solution"

Problem Recent Solvers243

Problem Tags

kaprekar

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 166. Kaprekar numbers

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers243

Suggested Problems

More from this Author23

Problem Tags

Community Treasure Hunt

Problem 166. Kaprekar numbers

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers243

Suggested Problems

More from this Author23

Problem Tags

Community Treasure Hunt

Players