First, factorise 60 and 156: \n" );
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document.write( " Factors of 60: 2,2,3,5 \n" );
document.write( " Factors of 156: 2,2,3,13. \n" );
document.write( "Highlight common factors: \n" );
document.write( " 60: 2,2,3,5 \n" );
document.write( " 156: 2,2,3,13 \n" );
document.write( " Common factors: 2,2,3 \n" );
document.write( "The product of these common factors is:2*2*3=12. \n" );
document.write( "This number, 12, is your greatest common factor: \n" );
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document.write( " Greatest Common Factor( 60, 156 ) = 12. \n" );
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