document.write( "Question 473733: find the greatest common factor of 20a^3b, 16a^2, and 36ab^3 \n" ); document.write( "
\n" ); document.write( "Hi,\n" ); document.write( "find the greatest common factor of 20a^3b, 16a^2, and 36ab^3\n" ); document.write( " the greatest common factor is 4ab