Jump to content


Welcome to BrainDen.com - Brain Teasers Forum

Welcome to BrainDen.com - Brain Teasers Forum. Like most online communities you must register to post in our community, but don't worry this is a simple free process. To be a part of BrainDen Forums you may create a new account or sign in if you already have an account.
As a member you could start new topics, reply to others, subscribe to topics/forums to get automatic updates, get your own profile and make new friends.

Of course, you can also enjoy our collection of amazing optical illusions and cool math games.

If you like our site, you may support us by simply clicking Google "+1" or Facebook "Like" buttons at the top.
If you have a website, we would appreciate a little link to BrainDen.

Thanks and enjoy the Den :-)
Guest Message by DevFuse
 

Photo
- - - - -

A self-referential number


Best Answer kukupai, 20 July 2013 - 01:54 PM

Spoiler for maybe

Go to the full post


  • Please log in to reply
2 replies to this topic

#1 BMAD

BMAD

    Senior Member

  • Members
  • PipPipPipPip
  • 1702 posts
  • Gender:Female

Posted 20 July 2013 - 05:50 AM

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours. 


  • 0

#2 kukupai

kukupai

    Junior Member

  • Members
  • PipPip
  • 30 posts
  • Gender:Female

Posted 20 July 2013 - 01:54 PM   Best Answer

Spoiler for maybe


  • 0

#3 Anza Power

Anza Power

    Junior Member

  • Members
  • PipPip
  • 80 posts

Posted 22 July 2013 - 09:23 PM

Spoiler for

  • 0




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users