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Ecin reversal! (Posted on 2013-03-18) Difficulty: 2 of 5
AB is the #CD prime and BA is the #DC prime.
It is the only existing reversal like that!
Find A, B, C, D.

In the above problem MN denotes a two-digit number i.e. 10*M+N.

No Solution Yet Submitted by Ady TZIDON    
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  Subject Author Date
SolutionanswerDej Mar2013-03-18 09:15:41
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