Question

Write down the factors of the following numbers:

(b) $90$.

Answer 1

All factors of $90$ are:

$$\begin{gathered} 1\times 90=90 \\ 2\times 45=90 \\ 3\times 30=90 \\ 6\times 15=90 \\ 9\times 10=90 \end{gathered}$$

Hence, all the factors of $90$ are: $1,2,3,6,9,10,15,30,45,90$.