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## 'Dissect' printed from http://nrich.maths.org/

It is possible to dissect any square into smaller squares. For
example a 3 by 3 square can be dissected into either 9 smaller
squares or 6 squares:

- What is the minimum number of squares a 13 by 13 square can be
dissected into?

- What is the smallest size square which can be dissected into
squares which are all different sizes?