#### Answer

The prime factorization is
$$2×2×5$$
or
$$ 2^2 \times 5$$

#### Work Step by Step

Using the factor tree, you will find that 2, 2, and 5 are the prime numbers that multiply to 20.
$$2×2×5$$
or
$$ 2^2 \times 5$$

Published by
Prentice Hall

ISBN 10:
0133281140

ISBN 13:
978-0-13328-114-9

The prime factorization is
$$2×2×5$$
or
$$ 2^2 \times 5$$

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