JavaScript - program to display n prime numbers using javascript

Asked By hari on 22-Oct-10 04:33 AM

program to print n prime no's using javascript

Jatin Prajapati replied to hari on 22-Oct-10 05:00 AM

var val=""

var count=0

function prime()

{

var i = 1

while(count<=1000)

{

var isPrime=1

for (j=2; j<=Math.sqrt(i); j++)

{

if(i%j==0)

{

isPrime=0

}

count=(isPrime==1?count+1:count)

if (isPrime==1)

{

val=val+"<br>"+i

}

i=i+1

}

document.write(val)

}

Reena Jain replied to hari on 22-Oct-10 05:05 AM

hi,

here is the code for this

var primes = new Array;

primes.push(2);// special - only even prime

for (var i = 3; i < 1000; i += 2)

{

var iSqrt = Math.floor(Math.sqrt(i));

var bPrime = true;

for ( j = 0; primes[j] <= iSqrt; j++ )

{

if ( i % primes[j] == 0 )

{

bPrime = false;

break;

}

if ( bPrime ) primes.push(i);

}

document.write(primes.join());

Hope this will help you