<HTML>
<HEAD><title>Prime no. In JavaScript</title>
<script>
function chkprime()
{ var div
var no=parseInt(frm.t1.value)
for(div=2;div<no;div++)
{
if(no%div==0)
break;
}
if(div==no)
alert(no + " is Prime number")
else
alert(no + " Not Prime number")
}
</script>
</HEAD> <BODY>
<form name=frm> Enter A Number:<input type=text name=t1 />
<input type='button' value='Is Prime?' onclick="chkprime();">
</form>
</BODY>
</HTML>
Prime numbers are a special kind of natural numbers or positive integers which are exactly
ReplyDeletedivisible by 1 and the number itself or such as 2,3,5,7 and 11.