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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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here's a quick solution i came up with Comment 8 of 8 |
whoops i just realized that i miss read the problem, i had thought that each row and column had to sum up to be a prime number, which is quite easy.. heres what i did anyways

4634
5075
2803
2591

Edited on August 16, 2005, 2:38 pm
  Posted by Jud on 2005-08-16 14:36:30

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