First and last digits of perfect squares

CoMaC, (2014) First and last digits of perfect squares. At Right Angles, 3 (2). pp. 67-70.

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It is assumed that we are working in base ten. Note that we do not know how many digits N has. It may seem that such a problem can be solved only using trial and error, by playing with a calculator, but we shall show otherwise. (We do use a calculator, but it is only for computation of two square roots.)

Item Type: Articles in APF Magazines
Authors: CoMaC,
Document Language:
Uncontrolled Keywords: odd, square, digits, denoted
Divisions: Azim Premji University > University Publications > At Right Angles
Full Text Status: Public
Publisher URL:

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