#### Answer

20

#### Work Step by Step

We are given the numbers 4 and 10.
We can find use the prime factorization of both numbers to find their LCM.
$4=2\times2$
$10=2\times5$
Therefore, the $LCM=(2\times2)\times(5)=20$.

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Published by
Pearson

ISBN 10:
0134467795

ISBN 13:
978-0-13446-779-5

20

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