Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 6 - Rational Expressions and Equations - 6.3 Addition, Subtraction, and Least Common Denominators - 6.3 Exercise Set - Page 394: 72

Answer

They are prime numbers.

Work Step by Step

Since common prime factors are not considered twice, it follows that if the product of the two numbers is their least common multiple, then the two numbers have no common prime factors. This only occurs if the two numbers are prime.
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