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
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 1 - Section 1.5 - Prime Factorization - Exercise - Page 25: 4
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