Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 1 - Section 1.5 - Prime Factorization - Exercise: 4

Answer

(a) no (b) yes

Work Step by Step

(a) 172 is not divisible by 3 since its digits add up to a number not divisible by 3 (1+7+2=10, which is not divisible by 3) (b) 172/4=43, so 172 is divisible by 4
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