Covers the related topics of divisibility and primality. This book describes the development of our understanding of perfect numbers. It also covers standard topics, such as Fermat's theorems, primitive roots, counting divisors, the Mobius function, and prime numbers themselves.
Leonard Eugene Dickson (January 22, 1874 – January 17, 1954) was an American mathematician. He was one of the first American researchers in abstract algebra, in particular the theory of finite fields and classical groups, and is also remembered for a three-volume history of number theory, History of the Theory of Numbers.