ABSTRACT

We shall here be concerned with the circle of ideas that surrounds the Fundamental Theorem of Arithmetic.

First we recall the usual definition of a prime: a prime number is a positive integer, other than 1, that has no divisors except itself and 1. For example 2 and 3 are primes, but 6 = 2 · 3 and 10 = 2 · 5 are not.