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Answer 1 · 2017-09-22T13:15:36

#169" "256" "441# are perfect squares

A square number is formed by multiplying a number by itself.

#x xx x = x^2#

Perfect squares are formed when a whole number is multiplied by itself. They will always be positive.

The first ten perfect squares are:

#1" "4" "9" "16" "25" "36" "49" "64" "81" "100#

Other perfect squares could be:

#13^2 = 169" "or 16^2 =256" "or 21^2 = 441#

A perfect square is a number whose square root is a whole number.