document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1337>Question 1337</A>: <I><SPAN STYLE=\"word-break: break-all;\"> John likes 400 but not 300, he likes 100 but not 99, he likes 3600 but not <BR>\n" );
document.write( "3700. What number does John like ?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #402 by </B><A HREF=/tutors/aboutme.mpl?userid=khwang><B>khwang(438)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=khwang><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=402\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  400, 100 and 600 are square of 20, 10 and 60,repectively.<BR>\n" );
document.write( " While 300,99 and 3700 are not.\r<BR>\n" );
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document.write( " So, John likes square numbers (perfect numbers) ie the form n^2 for<BR>\n" );
document.write( " some natural number n. </SPAN>\n" );
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