Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 2 - Multiplying and Dividing Fractions - 2.3 Factors - 2.3 Exercises - Page 130: 38



Work Step by Step

In order to find the prime factorization of 70, we can try to divide 70 by the first prime, 2. $70\div2=35$ 35 cannot be divided by 2 or 3, so we divide by the next prime, 5. $35\div5=7$ 7 itself is a prime number, so we cannot simplify any more. The prime factorization of 70 is $2\times5\times7$.
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