 Hi and welcome to the session. I am Deepika here. Today let us discuss a question. If a matrix has 18 elements, what are the possible orders it can have? What if it has 5 elements? We know that if a matrix is of order m by n, then it has m n elements. Let's start the solution. Solution, since a matrix has 18 elements, therefore m n is equal to 18. Now we will find all ordered pairs of natural numbers whose product is 18. Thus, possible ordered pairs are 18. 2 possible orders are 18. 2 by 9 is 6. 18 by 1. 5 elements of natural numbers whose product is 5. Thus, all possible ordered pairs are 1 by 5. Possible orders are 5 by 1. The question is, if a matrix has 18 elements, then the possible orders are 1 by 18. 2 by 9. 3 by 6. 6 by 3. 9 by 2. 18 by 1. And if a matrix has 5 elements, then the possible orders are 1 by 5 and 5 by 1. I hope you have enjoyed the session. Bye and