Mark $(\checkmark)$ against the correct answer in the following:
The least number divisible by each of the numbers $15, 20, 24, 32$ and $36$ is:
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Answer
The least number divisible by each of the numbers $15, 20, 24, 32$ and $36$ is their $LCM.$
$\begin{array}{c|c}2&15,20,24,32,36\\\hline2&15,10,12,16,18\\\hline2&15,5,6,8,9\\\hline2&15,5,3,4,9\\\hline2&15,5,3,2,9\\\hline3&15,5,3,1,9\\\hline3&5,5,1,1,3\\\hline5&5,5,1,1,1\\\hline&1,1,1,1,1\end{array}$
$LCM= 2^5 \times 3^2 \times 5$
$= 1440$
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