Saturday 26 March 2016

Write a JavaScript program to print first n prime numbers?

Code:


<!DOCTYPE html>
<html>
<body>
<center>
<h1>First N Prime Numbers</h1>
<script>
var nl="<br>";
var n;
var status=1;
var num=3;
n=prompt("Enter the limit");

if (n>=1)
{
document.write(2+nl);
}
for (var i = 2; i <= n;)
{
for (var j = 2; j <= Math.sqrt(num) ; j++)
{
if (num%j==0)
{
status=0;
break;
}
}
if (status!=0)
{
document.write(num+nl);
i++;
}
status=1;
num++;
}
</script>
</center>
</body>
</html>

Output:


 

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