3 - Armstrong number c sharp

Number is Armstrong in c#

  public bool CheckArmstrongNumber(int num) {

     int remainder, sum = 0;

     for (int i = num; i > 0; i = i / 10)

     {

      remainder = i % 10;

      sum = sum + remainder * remainder * remainder;

     }

     if (sum == num)

     {

       return true;

     }

     return false;

  }

    [TestMethod]

       public void TestCheckArmstrongNumber()

       {

           BasicProgramming basicProgramming
= new BasicProgramming();

           bool output = basicProgramming
.CheckArmstrongNumber(153);

           Assert.AreEqual(true, output);

       }

How to check using dry run method if a number
is Armstrong or not.

Those numbers whose sum of the cube of its digits
is equal to that number.

For ex. 153  ^= cube

1^3 + 5^3 + 3^3 = 1 + 125 + 9 = 153

Others numbers : 370, 371, 407.

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public bool CheckArmstrongNumber(int num) { int remainder, sum = 0; for (int i = num; i > 0; i = i / 10) { remainder = i % 10; sum = sum + remainder * remainder * remainder; } if (sum == num) { return true; } return false; }