Question

How to calculate and print the first 21,000 prime numbers in JavaScript

Answer 1

<script type="text/JavaScript">

var i;
var n = 21000;
var prime = 2;
var numbers = 1;
     
while (numbers <= n)
{
    for (i = 2 ; i <= prime - 1 ; i++)
    {
        if (prime % i == 0)
            break;
    }
    if (i == prime)
    {
        document.write(prime + "<br />");
        numbers++;
    }
    prime++;
}

/*
run:

...

237043
237053
237067
237071
237073
237089
237091
237137
237143
237151
237157
237161
237163
237173
237179
237203

*/
    
</script>

 

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