text: An efficient way to check whether n | A simple C # program to check if n - th Fibonacci number is multiple of 10. ; Returns true if n - th Fibonacci number is multiple of 10. ; main function
code: using System ; class GFG { static bool isMultipleOf10 ( int n ) { if ( n % 15 == 0 ) return true ; return false ; } public static void Main ( ) { int n = 30 ; if ( isMultipleOf10 ( n ) ) Console . Write ( " Yes " ) ; else Console . Write ( " No " ) ; } }