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PUZZLET 215

A Square from Concatenated Squares

4, 9, and 729 are all squares, and they're in ascending order of value.  When they are concatenated together, the result is 49729, which is also a square (223^2).

Find all other examples of triplets of squares in ascending order which concatenate to make another square.  Keep to a maximum squared value of 1,000 before concatenation.




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Last Updated: April 11th, 2010.