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These occur since 1 = 10/10, 2 = 10/5, and 5 = 10/2. Note that 10 is not an aliquot part of 10 since it is not a proper quotient, i.e. a quotient different from the number itself. A perfect number is defined to be one which is equal to the sum of its aliquot parts.
For example, 1, 4, and 9 are perfect squares.1 1 2, 4 2 2, and 9 3 2 You can use perfect squares to approximate a square root of a number. perfect square Checkpoint 5. Approximate 125 to the nearest whole number.Radical ExpressionsA is an expression that involvesa radical sign.