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JavaScript Prime Number Using For Loop



Code:

 <script language="javascript">

var num = prompt("Enter the number");
var flag = 0;
for(var i=2;i<num;i++){
if(num%2==0){
flag = 1;
break;

}

}

if(flag==0){

alert("The number is prime");
}
else {
alert("The number is not prime");
}

</script>

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