perplexus.info :: Just Math : Fill in

Fill in (Posted on 2004-07-20)

8448 is a multiple of 44. Change the two 4s for different odd numbers X and Y, so 8XY8 can be divided by XY. No computers allowed!

See The Solution Submitted by Federico Kereki

Rating: 2.7143 (7 votes)

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

it's really hard.

| Comment 5 of 8 |

Posted by christine on 2005-06-16 12:59:03

Please log in:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (5)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info