This application of Editorial Editex S.A. Calculate the LCM and the LCD between two numbers. It includes the following sections:  - Theory: contains a document in PDF format with a summary of contents.  - Practice: it allows to calculate the lcm and the gcf between two numbers, in addition to showing their factorial decomposition and classifying them into prime or compound numbers.  - Test: allows you to perform a self-assessment with 10 test-type exercises collected randomly  - Problems: this s