document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=774850>Question 774850</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a blue neon light blinks every 4 seconds. A red one blinks every 5 seconds, while a green one blinks every 6 seconds. How many times will they blink together in one hour?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #472484 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=472484\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  a blue neon light blinks every 4 seconds.<BR>\n" );
document.write( " A red one blinks every 5 seconds, while a green one blinks every 6 seconds<BR>\n" );
document.write( ". How many times will they blink together in one hour?<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Prime factor each:<BR>\n" );
document.write( "4: 2*2<BR>\n" );
document.write( "5: 5<BR>\n" );
document.write( "6: 2*3<BR>\n" );
document.write( "therefore<BR>\n" );
document.write( "2*2*3*5 = 60, only once  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );