Answer
Prime number, $1\times31$
Work Step by Step
A number is prime if it has only two factors: 1 and itself.
The only factors of 31 are 1 and 31. Therefore, 31 is a prime number.
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: 31
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