RosettaCodeData/Task/Primality-by-trial-division/C-sharp/primality-by-trial-division.cs
2023-07-01 13:44:08 -04:00

7 lines
201 B
C#

static bool isPrime(int n)
{
if (n <= 1) return false;
for (int i = 2; i * i <= n; i++)
if (n % i == 0) return false;
return true;
}