Driver code
static void Main ( ) { string number = "83959092724" ; if ( checkDivisibility ( number ) ) Console . Write ( number + " ▁ is ▁ divisible ▁ by ▁ 13 . " ) ; else Console . Write ( number + " ▁ is ▁ not ▁ divisible ▁ by ▁ 13 . " ) ; } }