Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 10 - Review: 35

Answer

5

Work Step by Step

The GCF of 20 and 35 is 5. To find, find the prime factors of each term. 20's factors are -20,-10,-5,-4,-2,-1,1,2,4,5,10,20. For 35, they are -35,-7,-5,-1,1,5,7, and 35. Look for the common factors. They are -5,-1,1, and 5. The biggest one is 5, so that is the answer.
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