Step 1

Find all possible ordered pair of natural numbers whose product is 13

If it has 13 elements the possible orders are $(1\times 13)(13\times 1)$

In the above case two types of matrices are formed

(i)Row matrix:

A matrix is said to be a row matrix if it has only one row.

$B=[b_{ij}]_{1\times n}$ is a row matrix of order $1\times n$

$1\times 13 \rightarrow$ the order is $1\times 13$

(ii)Column matrix:

A matrix is said to be a column matrix if it has only one column.

$B=[b_{ij}]_{n\times 1}$ is a column matrix of order $n\times 1$

$13\times 1 \rightarrow$ the order is $13\times 1$