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Anyway (Posted on 2010-08-16) Difficulty: 2 of 5
A three digit number N remains prime, no matter how you permute its digits.

Find N.

See The Solution Submitted by Ady TZIDON    
Rating: 4.0000 (1 votes)

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Solution official solution lists one wrong item | Comment 3 of 4 |

There are three numbers only:
113, 199,  and 337,

 

979 is a composite number =98*11 so 779 was placed by error


  Posted by Ady TZIDON on 2011-01-18 10:31:51
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