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<div><span class="kw">theorem </span><a NAME="T21"><span class="comment"><font color="firebrick">:: NUMBER09:21</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">n</font> being   <a href="ordinal1.html#NM6" title="ORDINAL1:NM.6">Nat</a>  st <font color="Olive" title="b1">n</font> is  <a href="number09.html#V1" title="NUMBER09:attr.1">a_product_of_two_primes</a>  holds <br/> for <font color="Olive" title="b2">a</font>, <font color="Olive" title="b3">b</font> being   <a href="ordinal1.html#NM6" title="ORDINAL1:NM.6">Nat</a>  st <font color="Olive" title="b2">a</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a> 1 &amp; <font color="Olive" title="b3">b</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a> 1 &amp; <font color="Olive" title="b1">n</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b2">a</font> <a href="xcmplx_0.html#K3" title="XCMPLX_0:func.3">*</a> <font color="Olive" title="b3">b</font> holds <br/>( <font color="Olive" title="b2">a</font> is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  &amp; <font color="Olive" title="b3">b</font> is  <a href="int_2.html#V1" title="INT_2:attr.1">prime</a>  ) <span class="kw">by</span> <span class="lab"><a class="ref" href="number07.html#T59" onmouseover="rs('number07/T59')" onmouseout="rh()">NUMBER07:59</a></span>;<br/></div></div>
