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

Home > Just Math
Casting Out Zeros (Posted on 2013-07-25) Difficulty: 4 of 5
One may perform the following two operations on a natural number:

1.Multiply it by any natural number
2.Delete zeros in its decimal representation.

For any natural number n, can one perform a sequence of these operations that will transform n to a one-digit number?

No Solution Yet Submitted by Danish Ahmed Khan    
No Rating

Comments: ( You must be logged in to post comments.)
  Subject Author Date
Some Thoughtsre: good for 11 thru 999Charlie2013-07-26 13:09:00
Some Thoughtsgood for 11 thru 999Charlie2013-07-26 13:05:20
re: Godel strikes again --- 31 and 33Charlie2013-07-26 09:53:15
Godel strikes againSteve Herman2013-07-25 21:43:36
Please log in:
Remember me:
Sign up! | Forgot password

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

Copyright © 2002 - 2020 by Animus Pactum Consulting. All rights reserved. Privacy Information