Tuesday, July 16, 2013

Prime Numbers in javascript

<HTML>
<HEAD>
<TITLE> Prime Number </TITLE>
</HEAD>
<script>
var inum=prompt("Enter a Value");
var a=new Array();
var val=0;
for(var ind = 1;ind<=inum;ind++){
count = 0;
for(i=2;i<=ind/2;i++){
if(ind%i==0){
count++;
break;
}
}
if(count==0 && ind!= 1){
a[val]=ind;
val++;
}
}
var indVal=9;
var inc=0;
while(inc<a.length)
{
inc++;
document.write("<font color='#"+ Math.floor(Math.random() * 16777215).toString(16)+"'>"+a[indVal]+"&nbsp&nbsp</font>");
indVal--;
if(inc%10==0)
{
document.write("<br>");
indVal=inc+9;
}
if(indVal>a.length)
{
var temp=indVal-a.length;
indVal=indVal-temp-1;
}
}
</script>
<body>
</body>
</html>

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