Numbers: Abundant, Deficient, Perfect, and Amicable What are "abundant" numbers? Why would such numbers be called plentiful? "Abundant" is a strange way to describe a number, and equally strange are descriptions such as "deficient," "perfect," and "amicable." But these descriptions of numbers came about because the ancient Greek mathematicians were intrigued by certain characteristics of positive integers . Source for information on Numbers: Abundant, Deficient, Perfect, and Amicable: Mathema...
