Finding HCF and LCM of Two Numbers with GeoGebra

This GeoGebra example shows how to compute the highest common factor (HCF) and least common multiple (LCM) of any two integers. It covers key number‑theoretic concepts such as the Euclidean algorithm, prime factorization, and the definitions of GCD and LCM. The construction uses GeoGebra commands like Sequence, RandomElement, Textfield, GCD, LCM, PrimeFactors, Length, and Name, and creates interactive input boxes and buttons for users to enter numbers and see results instantly. It is suitable for middle‑school to high‑school students and can be used in class lectures, practice sessions, or dynamic demonstrations to strengthen understanding of basic number operations.