Prime Factors

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Begin with the first prime number that will divide evenly into the number to be factored.</b></div> <bR> <div> <B><IMG SRC="1f1f8960.gif" border=0 width="248" height="150" ALT="Bitmap Image" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></b></div> <div> <B>To find the </b><FONT SIZE="2" COLOR="#0000CC" FACE="Arial" ><B>lowest common multiple</b></FONT><B>, multiply the terms in both sets, but do not use duplicated terms.  If a term appears in both factor sets, use the factors with the greatest exponent.</b></div> <div> <B><IMG SRC="1f080440.gif" border=0 width="128" height="68" ALT="Bitmap Image" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></b></div> <bR> <div> <B>To find the </b><FONT SIZE="2" COLOR="#0000FF" FACE="Arial" ><B>greatest common factor</b></FONT><B>, only use the factors that appear in both sets.  If a number is duplicated, use the duplicated factor with the smallest exponent.  The prime number 2 appears in both the factoring of 80 and 90, but in the factoring of 80, 2 has an exponent of 4 and of 90, 2 has an exponent of 1. There is only one 2 in 90, so you must use the 2.  However, 5 appears only once in factoring both numbers.</b></div> <div> <B>The </b><FONT SIZE="2" COLOR="#0000CC" FACE="Arial" ><B>GCF is  </b></FONT><B><IMG SRC="1f247160.gif" border=0 width="71" height="22" ALT="Bitmap Image" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></b></div> </td> </tr></table></body>