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iOS

Posted by Mohammed Hossain
Mohammed Hossain
555 Points

Trying to make a program to show me prime numbers (Swift)

let numbers = 1...10

for number in numbers {
    if (number * 1 == number) {
        println("\(number) is prime")
    } else if (number * 2 == number) {
        println("\(number) is odd")
    }
}

Okay so this is what i typed out. I am trying to show all the prime numbers just from 1-10. can anyone help me out? Thanks in advance!

1 Answer

William Li
PLUS
William Li
Courses Plus Student 26,868 Points
William Li
William Li
Courses Plus Student 26,868 Points

Hi, Mohammed Hossain , there's a fault in the conditional logic here.

if (number * 1 == number)

For any number, number * 1 == number will always return true.

Mohammed Hossain
Mohammed Hossain
555 Points

So how do i program it to show me prime numbers? i understand how that will always be true.