ARMSTRONG, PRIME
PRIME NO :
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title> TAKE A NUM FIND THE FACTORIAL OF A GIVEN NO USING PROMPT</title>
</head>
<body>
<script type="text/javascript">
a= parseInt(prompt("Prime No Checker: "));
// set count as 0
c=0
// if given no is positive
if(a>0){
// Loop checking divisability
for(i=1;i<=a;i++){
if(a%i==0){
c=c+1;
}
}
// count set to 2 when it is divided by 1 and itself
if(c==2){
document.write(`Given No ${a} is Prime No.`);
}
else{
document.write(`Given No ${a} is Not a Prime No.`);
}
}else if(a==0){
document.write(`Given No ${a} is Not a Prime No.`);
}else{
document.write(`Please Enter Unsigned No. `);
}
</script>
</body>
</html>
ARMSTRONG NO:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title> TAKE A NUMBER CHECK THE NO IS armstrong OR NOT</title>
</head>
<body>
<script type="text/javascript">
var a=parseInt(prompt("Armstrong No Checker: "));
var num = a;
power = 0;
// find the power
while(num>0){
power = power +1;
num = parseInt(num/10);
}
var num=a;
sum = 0;
// calculating sum
while(num>0){
var remainder = num%10;
sum = sum + Math.pow(remainder,power);
num = parseInt(num/10);
}
if(a==sum){
document.write(`Given No ${a} is Armstrong No.`);
}
else{
document.write(`Given No ${a} is Not a Armstrong No.`);
}
</script>
</body>
</html>
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