Oh Noes! Scratch project cannot display.Flash player is disabled, missing, or less than version 10.2.
A GCD and LCM calculator based on Euclid's algorithm (ELEMENTS, Book VII, Propositions 1-2).
For a good explanation of Euclid's algorithm look at http://en.wikipedia.org/wiki/Euclidean_algorithm
Scratch is a project of the Lifelong Kindergarten Group at the MIT Media Lab