perplexus.info :: Just Math : 2005 a square? Baseless!

2005 a square? Baseless! (Posted on 2005-05-30)

2005 base 10 is not a square. Neither is 2005 base 7 a square (equal 2*7^3+5=691). Is there any base b such that 2005 base b is a square?

See The Solution Submitted by McWorter

Rating: 3.6000 (5 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

re(2): Solution

| Comment 14 of 18 |

(In reply to re: Solution by pcbouhid)

Yes, I noticed this too late. Still, the proof holds if b'^3 is used instead of b'

Posted by Robby Goetschalckx on 2005-06-01 07:52:01

Please log in:

Forums (1)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (6)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info