# Highest Common Factors and Lowest Common Multiples

In this program we focus on finding common factors, highest common factor and lowest common multiple. As both the concepts are very important to learn before going to learn the concept of fractions. Since when the kids come across fractions with unlike denominators, those have to be dealt with the LCM concept. We follow many methods to find HCF and LCM until the child is comfortable with the concept.

In this program students will be able to:

1. Find highest common factor

Methods: Tree method, division method

2. Least common multiple.

Methods: Prime Factorization method, repeated division method.

3. Problem Solving: Eg: 4 measuring rods 128cm, 96cm,192cm and 160cm. What is the least length that can be measured exactly, using any of the 4 rods.