# Introduction :

We can check if a number is multiple of another number or not easily by division. If we divide the first number by the second number and if the remainder is *0*, the *second* number is a multiple of the *first* number. But, swift also provides one method called *isMultiple* that we can use to find out if a number is multiple of another number or not. In this tutorial, we will learn how to use this method.

## Declaration of isMultiple :

The *isMultiple* method is declared as like below :

`func isMultiple(of other: Int) -> Bool`

As you can see here, it takes one argument *other* of type *Int*. It returns one boolean value defining if the caller integer is a multiple of *others* or not. *true* if yes and *false* otherwise.

Note that this method is available only for integer types. It is not available for any other types like Float or Double.

## Example :

Letβs try to understand *isMultiple* with an example :

```
import UIKit
print(4.isMultiple(of: 2))
print(44.isMultiple(of: 5))
print(12224.isMultiple(of: 20))
```

It will print :

```
true
false
false
```

## Find out the multiple of 5 below 100 using isMultiple :

We can also use *isMultiple* to find out the list of integers divisible by *5*. You can use the same approach to find out integers divisible by any number *x*. Example program :

```
import UIKit
for n in 1...100{
if(n.isMultiple(of: 5)){
print(n)
}
}
```

It will give the below outputs :