<!--
{
  "availability" : [

  ],
  "documentType" : "symbol",
  "framework" : "Bitcoin",
  "identifier" : "/documentation/Bitcoin/BTCAmount/*(_:_:)",
  "metadataVersion" : "0.1.0",
  "role" : "Operator",
  "symbol" : {
    "kind" : "Operator",
    "modules" : [
      "Bitcoin"
    ],
    "preciseIdentifier" : "s:7Bitcoin9BTCAmountV1moiyA2C_s5Int64VtFZ"
  },
  "title" : "*(_:_:)"
}
-->

# *(_:_:)

Multiplies an amount by an integer scalar.

```
static func * (lhs: BTCAmount, rhs: Int64) -> BTCAmount
```

## Parameters

`lhs`

The amount to scale.

`rhs`

The integer multiplier.

## Return Value

A [`BTCAmount`](/documentation/Bitcoin/BTCAmount) with `lhs.satoshis * rhs`.

## Discussion> Precondition: The product fits in `Int64`; traps on overflow.