Detecting perfect squares faster than by extracting square root

A square number relates to the area of a square A cube number relates Square and cube numbers quiz Test your knowledge with this quick quiz Where

A perfect square must be equivalent to 0, 1, or 4 in mod 8 If not, you know you dont have a perfect square But if you do have a perfect square

square numbers quiz A quick reference of test credit card numbers and payment tokens you can use to make test payments with the Square Sandbox

texas two step past winning numbers Would you like to take this squares and cubes quiz? A square number is meant by a number that is multiplied by itself The square numbers up to 100 are