document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=448404>Question 448404</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the shortest formula for factorial. please send me the answer.<BR>\n" );
document.write( "for example we have<BR>\n" );
document.write( "100!=100.99.98.......  its too long can you offer me an easy and short formula for it.<BR>\n" );
document.write( "thanks.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #308548 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=308548\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 100! = 100*99*98*...*1. You could also express it using product notation:\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE 100! = \prod_{i=1}^{100} i\">\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Or as a recursive sequence, where <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?a_1 = 1\"> and <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?a_{n+1} = (n+1)a_n\">. 100! is simply <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?a_100\">. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );