# isMultiple(of:) Returns `true` if this value is a multiple of the given value, and `false` otherwise. ``` func isMultiple(of other: Self) -> Bool ``` ## Parameters `other` The value to test. ## Discussion For two integers *a* and *b*, *a* is a multiple of *b* if there exists a third integer *q* such that *a = q*b*. For example, *6* is a multiple of *3* because *6 = 2*3*. Zero is a multiple of everything because *0 = 0*x* for any integer *x*. Two edge cases are worth particular attention: - `x.isMultiple(of: 0)` is `true` if `x` is zero and `false` otherwise. - `T.min.isMultiple(of: -1)` is `true` for signed integer `T`, even though the quotient `T.min / -1` isn’t representable in type `T`. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)