 # Swift Double isMultiple()

The `isMultiple()` method checks if one number is multiple of another or not.

### Example

``````// check is 9 is multiple of 3 or not
var result = 9.isMultiple(of: 3)

print(result)

// Output: true``````

## isMultiple() Syntax

The syntax of the `isMultiple()` method is:

``num.isMultiple(of: otherNumber)``

Here, `num` is a number.

## isMultiple() Parameters

The `isMultiple()` method takes one parameter

• `otherNumber` - the value to test

## isMultiple() Return Values

The `isMultiple()` method returns boolean value

• `true` - if `num` is multiple of `otherNumber`
• `false` - if `num` is not a multiple of `otherNumber`

## Example 1: Swift Double isMultiple()

``````// check if 4 is multiple of 2 or not
var result1 = 4.isMultiple(of: 2)
print(result1)

// check if 2 is multiple of 4 or not
var result2 = 2.isMultiple(of: 4)
print(result2)

// check if 210 is multiple of 10 or not
var result3 = 210.isMultiple(of: 10)
print(result3)``````

Output

```true
false
true```

Here, since 4 is a multiple of 2, the `isMultiple()` method returns `true`. However, 2 is not a multiple of 4, the method returns `false`.

Lastly, since 210 is multiple of 10, the method returns `true`.

## Example 2: Check Odd or Even

``````// check if 48 is multiple of 2 or not
if 48.isMultiple(of: 2) {
print("Even Number")
}

else {
print("Odd number")
}``````

Output

```
Even Number```

Here, since 48 is multiple of 2, the code inside the `if` block is executed.