 Hi and welcome to the session. Today we will learn about factors and multiples. So first of all let us see what are the factors of a number? A factor of a number is an exact divisor of that number. For example, let us find out the factors of 8. We know that 8 is exactly divisible by 1, 2, 4 and 8 itself. So that means 1, 2 are the factors. There are some interesting facts about factors. First is that 1 is a factor. The number will be exactly divisible by 1. Next is every number will be exactly divisible by itself. Next we have every factor of a number the given number. Because the largest factor of a number is the number itself. And lastly given number that is then you can always count the number of factors of such numbers. Now let us move on to our next topic, multiples. A number is a multiple the factors of 8 that is 1, 2, 4 and 8. So we can say that 8 is the multiple each of its factors. That is 1 they will be. Now let us learn some interesting facts about multiples. First is the multiple of a number is greater than for example 2 cannot be a multiple is not a factor. So that means every multiple of a number is greater than or equal to that number. Now next is the number of multiples of a given number infinite. For example multiples of 4, 6, 14, 16 and so on this list is endless. So that means there are infinite multiples of 2. Next we have every number is a multiple. Now let us see what is a perfect number. A number let us find out the factors these are 1 plus 3 plus 6 is equal to 12. That is twice of the number that is 6. That means 6 is a perfect number. With this we finish this session hope you must have understood all the concepts. Goodbye take care and have a nice day.