document.write( "Question 218968: find the greatest common factor of 16 and 20 \n" ); document.write( "
Algebra.Com's Answer #164766 by stanbon(75887)\"\" \"About 
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find the greatest common factor of 16 and 20
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\n" ); document.write( "Convert to prime factor form:
\n" ); document.write( "16 = 2^4
\n" ); document.write( "20 = 2^2*5
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\n" ); document.write( "The greatest common factor is 2^2 = 4
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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