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A square (Posted on 2004-06-25) Difficulty: 2 of 5
A number AABB is the square of an integer. Find this integer, aided by pen and paper. No other calculating aids allowed.

See The Solution Submitted by Ady TZIDON    
Rating: 3.1429 (7 votes)

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re(2): solution | Comment 8 of 15 |
(In reply to re: solution by ThoughtProvoker)

What brings to mind that AABB can be rewritten as 11xA0B are the doubled digits.  Similarly if I saw ABAB, I'd think of AB x 101.
  Posted by Charlie on 2004-06-26 00:19:07

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