Discrete Mathematics and Its Applications, Seventh Edition

Published by McGraw-Hill Education
ISBN 10: 0073383090
ISBN 13: 978-0-07338-309-5

Chapter 4 - Section 4.3 - Primes and Greatest Common Divisors - Exercises - Page 272: 4


a) 3⋅13 b) $3^4$ c) prime d) 11⋅13 e) 17⋅7 f) 29⋅31

Work Step by Step

To find the prime factorization of these integers, we proceed methodically through the integers using divisibility tests to inform which numbers we check as factors. a) 39=3⋅13 b) $81=9^2=3^4$ c) 101 is prime d) 143=11⋅13 e) 289=17⋅7 f) 899=29⋅13
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