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General Knowledge Quiz

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OhNoAPacer

Member
Joined
11 Mar 2013
Messages
719
Location
Egremont Cumbria / Northampton
This is a mathematical curiosity where you take a 4 digit number where at least 2 of the digits are different. You order the digits into ascending and descending order, inserting leading zeros if required. You subtract tge smaller from the larger number and if the number obtained isn't kaprekars constant then you repeat the steps using the obtained number, eventually you will get 6174, doing ordering and subtracting on this will get you 6174, hence the constant bit.
 

DaleCooper

Established Member
Joined
2 Mar 2015
Messages
3,542
Location
Mulholland Drive
This is a mathematical curiosity where you take a 4 digit number where at least 2 of the digits are different. You order the digits into ascending and descending order, inserting leading zeros if required. You subtract tge smaller from the larger number and if the number obtained isn't kaprekars constant then you repeat the steps using the obtained number, eventually you will get 6174, doing ordering and subtracting on this will get you 6174, hence the constant bit.
I'm impressed by your knowledge and comprehensive answer, your turn...
 

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