Khan Academy Static

Lowest_common_multiple

Here, we will look into what we mean when we use the term "Lowest common multiple" and how we can calculate it.

More_divisibility_rules

Here, we will lean few more divisibility rules, like if a number is divisible by another number then it is divisible by each of the factors of that number.

Prime_and_composite_numbers

In this topic we will see that composite numbers have more than two factors while' Prime numbers' have exactly two factors: 1 and the number itself. We will also look into prime factorization and a fundamental theorem of arithmetic.

Factors_and_multiples

In this topic we will see that a factor of a number is an exact divisor of that number, and a multiple is a result of the multiplication of that number with another whole number. Let's look at this concept closely!

Highest_common_factor

We will understand what the we mean by the term "Greatest common divisor" or "Highest common factor", and cover some basic exercises. Let's begin!

Prime_factorization

When a number is expressed as a product of its factors, we say that the number has been factorized. Here, we will look deeper into the concept of prime factorization, the fundamental theorem of arithmetic, and do a divisibility exercise!

Test_for_divisibility_of_numbers

In this topic we will look into how the 2, 3, 4, 5, 6, 8, 9, 10 divisibility rules govern the divisibility of a large number. We will also do the 3 and 9 divisibility rules in detail. Let's see what we mean by that!

Some_problems_on_HCF_and_LCM

Let's look into some applications of Highest common factor (HCF) and Lowest common multiple (LCM), and try to build a better understanding of these topics through some exercises.