Question
Give the prime factorization of the following number:
18
18
✓
Answer
We will use the didvision method as shown below:
$\begin{array}{c|c}2&18\\\hline2&9\\\hline3&3\\\hline&1\end{array}$
$\therefore18=2\times3\times3$
$=2\times3^2$
$\begin{array}{c|c}2&18\\\hline2&9\\\hline3&3\\\hline&1\end{array}$
$\therefore18=2\times3\times3$
$=2\times3^2$
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