Answer
Composite
Work Step by Step
A prime number is a number that has only 2 factors: 1 and itself. A composite number is a number that has more than 2 factors.
The factors of 15 are 1, 3, 5, and 15.
Therefore, 15 is composite.
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
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 - Page 26: 10
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