Driver Code
public static void Main ( ) { int n = 15 ; Console . Write ( " Following ▁ are ▁ the ▁ alternate " + " ▁ prime ▁ numbers ▁ smaller ▁ " + " than ▁ or ▁ equal ▁ to ▁ " + n + " STRNEWLINE " ) ; SieveOfEratosthenes ( n ) ; } }