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Prime square (Posted on 2005-07-19) Difficulty: 3 of 5
Can you fill a 4x4 square so each row and each column forms a prime number? And a 5x5 square?

Note: in both cases, there should be no duplicate rows or duplicate columns. Also, numbers cannot start with a 0. Finally, all digits from 0 to 9 should be used at least once.

No Solution Yet Submitted by Federico Kereki    
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re(3): Sorry, FK, I have no time, but ... | Comment 6 of 8 |
(In reply to re(2): Sorry, FK, I have no time, but ... by pcbouhid)

What I originally posted here ("The larger the array, the easier the problem becomes") is not true. 

I must have been thinking of something else.

 

Edited on July 19, 2005, 11:59 pm
  Posted by Penny on 2005-07-19 23:58:05

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