document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=475865>Question 475865</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Counterexample<BR>\n" );
document.write( "Help,Please! take me for ever solve this problem,thanks in advance I attach lesson <BR>\n" );
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document.write( "I need help number 7 and 19<BR>\n" );
document.write( "the key number 7 ,   n=3<BR>\n" );
document.write( "the key number 19 ,  n=3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #326363 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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/cgi-bin/show-face.mpl?user=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=326363\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You've essentially solved both problems. For #7 (Find a counterexample to the statement \"2^n + 3^n is divisible by 4\"), n=3 is a counterexample, because 8+27 is not divisible by 4. Similarly, n=3 is a counterexample to #19, which disproves the statement. </SPAN>\n" );
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