Friendly numbers.

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <script type="text/javascript"> //OwnerIQ var __oiq_pct = 50; if( __oiq_pct>=100 || Math.floor(Math.random()*100/(100-__oiq_pct)) > 0 ) { var _oiqq = _oiqq || []; _oiqq.push(['oiq_addPageBrand','Lycos']); _oiqq.push(['oiq_addPageCat','Internet > Websites']); _oiqq.push(['oiq_addPageLifecycle','Intend']); _oiqq.push(['oiq_doTag']); (function() { var oiq = document.createElement('script'); oiq.type = 'text/javascript'; oiq.async = true; oiq.src = document.location.protocol + '//px.owneriq.net/stas/s/lycosn.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(oiq, s); })(); } //Google Analytics var _gaq = _gaq || []; _gaq.push(['_setAccount','UA-21402695-19']); _gaq.push(['_setDomainName','tripod.com']); _gaq.push(['_setCustomVar',1,'member_name','billellwood0',3]); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); //Lycos Init function getReferrer() { var all= this.document.cookie; if (all== '') return false; var cookie_name = 'REFERRER='; var start = all.lastIndexOf(cookie_name); if (start == -1) return false; start += cookie_name.length; var end = all.indexOf(';', start); if (end == -1) end = all.length; return all.substring(start, end); } function getQuery() { var rfr = getReferrer(); if (rfr == '') return false; var q = extractQuery(rfr, 'yahoo.com', 'p='); if (q) return q; q = extractQuery(rfr, '', 'q='); return q ? q : ""; } function extractQuery(full, site, q_param) { var start = full.lastIndexOf(site); if (start == -1) return false; start = full.lastIndexOf(q_param); if (start == -1) return false; start += q_param.length; var end = full.indexOf('&', start); if (end == -1) end = full.length; return unescape(full.substring(start, end)).split(" ").join("+"); } function generateHref(atag, template){ atag.href=template.replace('_MYURL_', window.location.href.replace('http://', '')).replace('_MYTITLE_','Check%20out%20this%20Tripod%20Member%20site!'); } var lycos_ad = Array(); var lycos_onload_timer; var cm_role = "live"; var cm_host = "tripod.lycos.com"; var cm_taxid = "/memberembedded"; var tripod_member_name = "billellwood0"; var tripod_member_page = "billellwood0/id692.htm"; var tripod_ratings_hash = "1747723442:a29468f654775c657cf063bcf9b387da"; var lycos_ad_category = null; var lycos_ad_remote_addr = "209.202.244.9"; var lycos_ad_www_server = "www.tripod.lycos.com"; var lycos_ad_track_small = ""; var lycos_ad_track_served = ""; var lycos_search_query = getQuery(); </script> <script type="text/javascript" src="https://scripts.lycos.com/catman/init.js"></script> <script type='text/javascript'> var googletag = googletag || {}; googletag.cmd = googletag.cmd || []; (function() { var gads = document.createElement('script'); gads.async = true; gads.type = 'text/javascript'; var useSSL = 'https:' == document.location.protocol; gads.src = (useSSL ? 'https:' : 'http:') + '//www.googletagservices.com/tag/js/gpt.js'; var node = document.getElementsByTagName('script')[0]; node.parentNode.insertBefore(gads, node); })(); </script> <script type='text/javascript'> googletag.cmd.push(function() { googletag.defineSlot('/95963596/TRI_300X250_dfp', [300, 250], 'div-gpt-ad-1450204159126-0').addService(googletag.pubads()); googletag.defineSlot('/95963596/TRI_above_728x90_dfp', [728, 90], 'div-gpt-ad-1450204159126-1').addService(googletag.pubads()); googletag.defineSlot('/95963596/TRI_below_728x90_dfp', [728, 90], 'div-gpt-ad-1450204159126-2').addService(googletag.pubads()); googletag.pubads().enableSingleRequest(); googletag.enableServices(); }); </script> <script type="text/javascript"> (function(isV) { if( !isV ) { return; } var adMgr = new AdManager(); var lycos_prod_set = adMgr.chooseProductSet(); var slots = ["leaderboard", "leaderboard2", "toolbar_image", "toolbar_text", "smallbox", "top_promo", "footer2", "slider"]; var adCat = this.lycos_ad_category; adMgr.setForcedParam('page', (adCat && adCat.dmoz) ? adCat.dmoz : 'member'); if (this.lycos_search_query) { adMgr.setForcedParam("keyword", this.lycos_search_query); } else if(adCat && adCat.find_what) { adMgr.setForcedParam('keyword', adCat.find_what); } for (var s in slots) { var slot = slots[s]; if (adMgr.isSlotAvailable(slot)) { this.lycos_ad[slot] = adMgr.getSlot(slot); } } adMgr.renderHeader(); adMgr.renderFooter(); }((function() { var w = 0, h = 0, minimumThreshold = 300; if (top == self) { return true; } if (typeof(window.innerWidth) == 'number' ) { w = window.innerWidth; h = window.innerHeight; } else if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) { w = document.documentElement.clientWidth; h = document.documentElement.clientHeight; } else if (document.body && (document.body.clientWidth || document.body.clientHeight)) { w = document.body.clientWidth; h = document.body.clientHeight; } return ((w > minimumThreshold) && (h > minimumThreshold)); }()))); window.onload = function() { var f = document.getElementById("FooterAd"); var b = document.getElementsByTagName("body")[0]; b.appendChild(f); f.style.display = "block"; document.getElementById('lycosFooterAdiFrame').src = '/adm/ad/footerAd.iframe.html'; // DOM Inj Ad (function(isTrellix) { var e = document.createElement('iframe'); e.style.border = '0'; e.style.margin = 0; e.style.display = 'block'; e.style.cssFloat = 'right'; e.style.height = '254px'; e.style.overflow = 'hidden'; e.style.padding = 0; e.style.width = '300px'; var isBlokedByDomain = function( href ) { var blockedDomains = [ "ananyaporn13000.tripod.com", "xxxpornxxx.tripod.com" ]; var flag = false; for( var i=0; i<blockedDomains.length; i++ ) { if( href.search( blockedDomains[ i ] ) >= 0 ) { flag = true; } } return flag; } var getMetaContent = function( metaName ) { var metas = document.getElementsByTagName('meta'); for (i=0; i<metas.length; i++) { if( metas[i].getAttribute("name") == metaName ) { return metas[i].getAttribute("content"); } } return false; } var getCommentNodes = function(regexPattern) { var nodes = {}; var nodesA = []; var preferredNodesList = ['a', 'c', 'b']; (function getNodesThatHaveComments(n, pattern) { if (n.hasChildNodes()) { if (n.tagName === 'IFRAME') { return false; } for (var i = 0; i < n.childNodes.length; i++) { if ((n.childNodes[i].nodeType === 8) && (pattern.test(n.childNodes[i].nodeValue))) { var areaName = pattern.exec(n.childNodes[i].nodeValue)[1]; nodes[areaName] = n; } else if (n.childNodes[i].nodeType === 1) { getNodesThatHaveComments(n.childNodes[i], pattern); } } } }(document.body, regexPattern)); for (var i in preferredNodesList) { if (nodes[preferredNodesList[i]]) { if( isTrellix && nodes[preferredNodesList[i]].parentNode.parentNode.parentNode.parentNode ) { nodesA.push(nodes[preferredNodesList[i]].parentNode.parentNode.parentNode.parentNode); } else { nodesA.push( nodes[preferredNodesList[i]] ); } } } return nodesA; } var properNode = null; var areaNodes = getCommentNodes( new RegExp( '^area Type="area_(\\w+)"' ) ); for (var i = 0; i < areaNodes.length; i++) { var a = parseInt(getComputedStyle(areaNodes[i]).width); if ((a >= 300) && (a <= 400)) { properNode = areaNodes[i]; break; } } var propertyName = getMetaContent("property") || false; if( isTrellix && (properNode) ) { e.src = '/adm/ad/injectAd.iframe.html'; properNode.insertBefore(e, properNode.firstChild); } else if( isTrellix && !( properNode ) ) // Slap the ad eventhought there is no alocated slot { e.src = '/adm/ad/injectAd.iframe.html'; e.style.cssFloat = 'none'; var cdiv = document.createElement('div'); cdiv.style = "width:300px;margin:10px auto;"; cdiv.appendChild( e ); b.insertBefore(cdiv, b.lastChild); } else if( !isBlokedByDomain( location.href ) ) { var injF = document.createElement('iframe'); injF.style.border = '0'; injF.style.margin = 0; injF.style.display = 'block'; injF.style.cssFloat = 'none'; injF.style.height = '254px'; injF.style.overflow = 'hidden'; injF.style.padding = 0; injF.style.width = '300px'; injF.src = '/adm/ad/injectAd.iframe.html'; if( b && ( !isTrellix || ( typeof isTrellix == "undefined" ) ) ) // All other tripod props { var cdiv = document.createElement('div'); cdiv.style = "width:300px;margin:10px auto;"; cdiv.appendChild( injF ); b.insertBefore(cdiv, b.lastChild); } } }( document.isTrellix )); } </script> <div id="tb_container" style="background:#DFDCCF; border-bottom:1px solid #393939; position:relative; z-index:999999999!important">  <style> .adCenterClass{margin:0 auto} </style> <div id="tb_ad" class="adCenterClass" style="display:block!important; overflow:hidden; width:916px;"> <div id="ad_container" style="display:block!important; float:left; width:728px "> <script type="text/javascript"> if (typeof lycos_ad !== "undefined" && "leaderboard" in lycos_ad) { document.write(lycos_ad['leaderboard']); } </script> </div> </div> </div> <script type="text/javascript"> if (typeof lycos_ad !== "undefined" && "slider" in lycos_ad) { document.write(lycos_ad['slider']); } </script>  <div id="FooterAd" style="background:#DFDCCF; border-top:1px solid #393939; clear:both; display:none; width:100%!important; position:relative; z-index:999999!important; height:90px!important"> <div class="adCenterClass" style="display:block!important; overflow:hidden; width:916px;"> <div id="footerAd_container" style="display:block!important; float:left; width:728px"> <iframe id="lycosFooterAdiFrame" style="border:0; display:block; float:left; height:96px; overflow:hidden; padding:0; width:750px"></iframe> </div> </div> </div> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" colspan=2 height=90 BGCOLOR="#006699" TEXT="#080000" background="04bfd5a3.jpg"> <div> <FONT SIZE="5" COLOR="#000000" FACE="Arial" ><B>Mathematical  Digest</b></FONT><B>    </b><B> |     </b><A HREF="index.htm" TARGET="_top" TITLE="Mathematical Digest"><U><B>home</b></U></A></div> <bR> <div> </div> </td> </tr><tr> <td valign="top" width=210 BGCOLOR="#FFCC66" TEXT="#080000" background="04cd2043.jpg"> <div> <A HREF="id6.htm" TARGET="_top" TITLE="Teacher members page !"><U><B>back to members page</b></U></A><FONT SIZE="3" COLOR="#000000" FACE="Arial" ><B> </b></FONT></div> <div> <A HREF="id627.htm" TARGET="_top" TITLE="Numbers, numbers, numbers."><U><B>Numbers,numbers,numbers.</b></U></A></div> <div> <A HREF="id688.htm" TARGET="_top" TITLE="Lucky numbers."><U><B>Lucky numbers</b></U></A><FONT SIZE="3" COLOR="#000000" FACE="Arial" ><B> </b></FONT></div> <div> <A HREF="id786.htm" TARGET="_top" TITLE="entry to answer page for Lucky numbers"><U><B> </b></U></A><FONT SIZE="2" COLOR="#0000FF" FACE="Arial" ><A HREF="id786.htm" TARGET="_top" TITLE="entry to answer page for Lucky numbers"><U><B>Lucky answers</b></U></A></FONT></div> <div> <A HREF="id689.htm" TARGET="_top" TITLE="Happy numbers."><U><B>Happy numbers</b></U></A><FONT SIZE="3" COLOR="#000000" FACE="Arial" ><B> </b></FONT></div> <div> <A HREF="id787.htm" TARGET="_top" TITLE="entry to answer page for Happy numbers"><U><B> Happy answers</b></U></A></div> <div> <A HREF="id690.htm" TARGET="_top" TITLE="Social numbers."><U><B>Social numbers</b></U></A><FONT SIZE="3" COLOR="#000000" FACE="Arial" ><B> </b></FONT></div> <div> <A HREF="id788.htm" TARGET="_top" TITLE="entry to answer page for Social numbers"><U><B> Social answers</b></U></A></div> <div> <A HREF="id691.htm" TARGET="_top" TITLE="Lagado numbers."><U><B>Lagado numbers</b></U></A><FONT SIZE="3" COLOR="#000000" FACE="Arial" ><B> </b></FONT></div> <div> <A HREF="id789.htm" TARGET="_top" TITLE="entry to answer page for Lagado numbers"><U><B> Lagado answers</b></U></A></div> <div> <A HREF="id692.htm" TARGET="_top" TITLE="Friendly numbers."><U><B>Friendly numbers</b></U></A><FONT SIZE="3" COLOR="#000000" FACE="Arial" ><B> </b></FONT></div> <div> <A HREF="id790.htm" TARGET="_top" TITLE="entry to answer page for Friendly number"><U><B> Friendly answers</b></U></A></div> <div> <A HREF="id693.htm" TARGET="_top" TITLE="Pizza numbers."><U><B>Pizza numbers</b></U></A><FONT SIZE="3" COLOR="#000000" FACE="Arial" ><B> </b></FONT></div> <div> <A HREF="id791.htm" TARGET="_top" TITLE="entry to answer page for Pizza numbers"><U><B> Pizza answers</b></U></A></div> <div> <A HREF="id694.htm" TARGET="_top" TITLE="Secret numbers."><U><B>Secret numbers</b></U></A><FONT SIZE="3" COLOR="#000000" FACE="Arial" ><B> </b></FONT></div> <div> <A HREF="id792.htm" TARGET="_top" TITLE="entry to answer page for Secret numbers"><U><B> Secret answers</b></U></A></div> <div> <A HREF="id695.htm" TARGET="_top" TITLE="Perfect numbers."><U><B>Perfect numbers</b></U></A><FONT SIZE="3" COLOR="#000000" FACE="Arial" ><B> </b></FONT></div> <div> <A HREF="id793.htm" TARGET="_top" TITLE="entry to answer page for Perfect numbers"><U><B> Perfect answers</b></U></A></div> <div> <A HREF="id696.htm" TARGET="_top" TITLE="Crossnumber numbers."><U><B>Crossnumber numbers</b></U></A><FONT SIZE="2" COLOR="#000000" FACE="Arial" ><B> </b></FONT></div> <div> <A HREF="id794.htm" TARGET="_top" TITLE="entry to answer page for Crossnumber num"><U><B> Cross answers</b></U></A></div> <div> <A HREF="id697.htm" TARGET="_top" TITLE="Triangular numbers."><U><B>Triangular numbers</b></U></A><FONT SIZE="3" COLOR="#000000" FACE="Arial" ><B> </b></FONT></div> <div> <A HREF="id795.htm" TARGET="_top" TITLE="entry to answer page for Triangular numb"><U><B> Triangular answers</b></U></A></div> <div> <A HREF="id686.htm" TARGET="_top" TITLE="Square numbers."><U><B>Square numbers</b></U></A><FONT SIZE="3" COLOR="#000000" FACE="Arial" ><B> </b></FONT></div> <div> <A HREF="id796.htm" TARGET="_top" TITLE="entry to answer page for Square numbers"><U><B> Square answers</b></U></A></div> <div> <A HREF="id687.htm" TARGET="_top" TITLE="Pentagonal numbers."><U><B>Pentagonal numbers</b></U></A><FONT SIZE="3" COLOR="#000000" FACE="Arial" ><B> </b></FONT></div> <div> <A HREF="id797.htm" TARGET="_top" TITLE="entry to answer page for Pentagonal numb"><U><B> Pentagonal answers</b></U></A></div> <div> <A HREF="id698.htm" TARGET="_top" TITLE="Sneaky numbers."><U><B>Sneaky numbers.</b></U></A><FONT SIZE="3" COLOR="#000000" FACE="Arial" ><B> </b></FONT></div> <div> <A HREF="id798.htm" TARGET="_top" TITLE="entry to answer page for Sneaky numbers"><U><B> Sneaky answers</b></U></A></div> <div> <B>To print this page point the curser on a clear space on the right hand side of the page to be printed. Now right click and the print button should appear. Activate this.</b><FONT SIZE="3" COLOR="#000000" FACE="Arial" ><B> </b></FONT></div> <div> <B>If it does not appear then move the curser to another part of the page and right click again.</b></div> <bR> <bR> </td> <td valign="top" height=390 BGCOLOR="#FFFFFF" TEXT="#080000"> <div> <I>Friendly numbers.</I></div> <div> <IMG SRC="5fc05380.jpg" border=0 width="517" height="568" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> </td> </tr></table></body>