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 1 - Introduction to Algebraic Expressions - 1.3 Fraction Notation - 1.3 Exercise Set: 35

Answer

$5\times23$

Work Step by Step

A number is prime if it has only two factors: 1 and itself. We know that the factors of 115 are 1, 5, 23, and 115. 5 is a prime number, so we can divide 115 by 5. $115\div5=23$ 23 is also a prime number. Therefore, the prime factorization of 115 is $5\times23$.
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