document.write( "Question 124985: What is the greatest common factor?\r
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Algebra.Com's Answer #91636 by nadinadan(32)\"\" \"About 
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16x^3, 28x^7
\n" ); document.write( "Let's list all the factors of each number.
\n" ); document.write( "16x^3= 2*2*2*2*x*x*x
\n" ); document.write( "28x^7= 2*2*7*x*x*x*x*x*x*x The GCF is the product of the common prime factors.
\n" ); document.write( "Tha GCF is the product 2*2*x*x*x=4x^3
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