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Chapter 7: Q 3. (page 819)

In the following exercises, find the greatest common factor.

72,162

Short Answer

Expert verified

GCF is 18.

Step by step solution

01

Step 1. Given information.

The given expressions are:

72,162

02

Step 2. Find the GCF. 

Factor each coefficient into primes and write the variables with exponents in expanded form.

72=2·2·2·3·3162=2·3·3·3·3

Bring down the common factors,

GCF is:

=2·3·3=18

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