c++ - recursively check if number is a prime -

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I am trying to check that the number is a major (all numbers below it by dividing by n) here My attempt is: 

  bool isPrime (int n, int d) {if (d == 1) the truth comes back; Other {if (n% d == 0) {return false; } And return (N, D-1); }}   
 n - Number to check whether the head is the number given below when calling the D-function n-1.  
 Please help me understand what I am doing wrong.   
 
 
 You are not calling your function again.  Return (n, d-1);  should be  return isPrime (n, d-1);

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