Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 5 - Number Theory and the Real Number System - 5.1 Number Theory: Prime and Composite Numbers - Exercise Set 5.1: 23

Answer

True.

Work Step by Step

Sum of digits = 5+1+7+8+7+2=30 which is divisible by 3. Last 2 digits are 72 which is divisible by 4. The number is divisible by 3 and 4 so it is divisible by 12.
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