document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1027857>Question 1027857</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the greatest prime that must be concidered to test whether 671 is prime?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #643161 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=643161\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What is the greatest prime that must be concidered to test whether 671 is prime? <BR>\n" );
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document.write( "It depends on your method.<BR>\n" );
document.write( "If you test primes in order, you'll find that 11 is a factor, leaving 61 (671 = 11*61).<BR>\n" );
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document.write( "Then checking 61 requires testing to INT(sqrt(61)) = 7<BR>\n" );
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