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Taking the 5th (Posted on 2009-05-03) Difficulty: 2 of 5
A5 + B5 + C5 + D5 + E5 = ABCDE

where each separate letter represents a different digit and A is not zero.

What is ABCDE?

See The Solution Submitted by Charlie    
Rating: 1.0000 (1 votes)

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This takes me back... | Comment 2 of 5 |
I got this book almost 20 years ago; shortly after high school:
http://www.amazon.com/Penguin-Book-Curious-Interesting-Numbers/dp/0140261494
A few numbers of this type are in it.  I still flip through it once in a while. 
In college I took a programming course and for a project I wrote a program to find some numbers of this type.   Computers being what they were I don't think I went much beyond  the number that is the solution here.  Apparently they are all known now:
http://mathworld.wolfram.com/NarcissisticNumber.html

  Posted by Jer on 2009-05-03 17:24:55
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