## Numbers were last digit is zero, are even.

Example: 10, 20, 30, 40, etc.

# Attention: Zero!

### The number Zero is neither odd nor even.

- A pair consists of two elements.
- Dividing a number by two, we count the number of pairs.
- Zero elements, resulting zero pairs.

### In words we say:

for any integer , not equal zero ,

if the remainder of the division by two is zero , the number is even,

and if the remainder of the division by two is one , the number is odd.## The number Zero is neither odd nor even.

# JavaScript:

```
var pairs=Math.floor(number/2);
var remainder=number%2;
if (remainder){
console.log("Number is ODD");
}else if (pairs && remainder === 0){
console.log("Number is EVEN");
}else{
console.log("Number ZERO is neither ODD nor EVEN");
};
```