Concept explainers
To find which pair is not relatively prime.
Answer to Problem 65E
C. 63, 91 is not relatively prime.
Explanation of Solution
Given Information: A. 32, 65 B. 34, 69 C. 63, 91 D. 26, 85
Formula used: Find their greatest prime factor using factorization method.
Calculation:
The factors of 63 are:
The factors of 91 are:
As 7 is common between both numbers, the greatest common factor is 7.
Since the numbers have a common factor other than 1, therefore, they are not relatively prime numbers.
C. 63, 97 is not relatively prime.
Chapter 4 Solutions
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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