document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=447144>Question 447144</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Let the \"kernel\" of a number be defined as the square of its greatest prime factor. For instance,the \"kernel\" of 18 is 9, because the greatest prime factor of 18 is 3(prime factorization: 18=2*3*3), and  =9.<BR>\n" );
document.write( "What is \"kernel\" of 39?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #307868 by </B><A HREF=/tutors/aboutme.mpl?userid=tinbar><B>tinbar(133)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tinbar><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=307868\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> well, start with the prime factorization of 39<BR>\n" );
document.write( "39=3*13<BR>\n" );
document.write( "of these prime factors, 13 is the largest, therefore the kernel (under your definition) is 13^2 which is 169 </SPAN>\n" );
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