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iOS Swift Collections and Control Flow Control Flow With Conditional Statements Working With Logical Operators

Aryaman Dhingra
Aryaman Dhingra
3,536 Points

How to check if a number is a multiple of 7?

I'm trying this, but It's not working. HELP PLEASE

operators.swift
var results: [Int] = []

for n in 1...100 {
    // Enter your code below
    if (n % 2 != 0) && (n/7 is Int) {
      results.append(n)
    }
    // End code 
}

1 Answer

Hello there,

I was able to get this to pass by using the modulo(%) operator a second time, like this:

var results: [Int] = []

for n in 1...100 {
    // Enter your code below
    if (n % 2 != 0) && (n % 7 == 0) {
      results.append(n)
    }
    // End code 
}

Since it needs to be divisible by 7, there should be no remainder when divided, so the % operator works well.

Happy coding!

Chris Shaffer
Chris Shaffer
12,030 Points

I have EXACTLY the same code and it gives this:

Bummer! Make sure you are performing logical checks in the condition of the if statement

Chris Shaffer
Chris Shaffer
12,030 Points

Nevermind lol - I missed a space before my equals operator. Silly.

I've been writing JS for 5 years and still make simple mistakes like this. Happens to the best of us.

It absolutely does happen to everyone - I'm not infallible either, so I appreciate you checking!

Much appreciated. My math is generally pretty bad. But coming and check for this example helped :)