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- import Darwin
- func isPrime(n: Double) -> Bool {
- if n < 2 {
- return false
- }
- if n == 2 {
- return true
- }
- if n % 2 == 0 {
- return false
- }
- for var i: Double = 3; i <= sqrt(n); i += 2 {
- if n % i == 0 {
- print(n)
- print(i)
- return false
- }
- }
- return true
- }
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