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C++ Exercises: Calculate product of digits of any number

C++ For Loop: Exercise-58 with Solution

Write a program in C++ to calculate the product of the digits of any number.

Visual Presentation:

Sample Solution:

C++ Code :

``````#include <iostream> // Include the input/output stream library
using namespace std; // Using standard namespace

int main() // Main function where the execution of the program starts
{
int num1, num2, r, pro = 1, i; // Declare integer variables num1, num2, r, pro, and i

// Display message asking for input
cout << "\n\n Find the product of digits of a given number:\n";
cout << "--------------------------------------------------\n";
cout << " Input a number: ";
cin >> num1; // Read input for the number from the user

num2 = num1; // Assign the input number to variable 'num2'

// Loop to calculate the product of digits of the number
for (i = num1; i < 0; i = i / 10)
{
r = i % 10; // Extract the digit from the number
pro = pro * r; // Calculate the product of the digits
}

// Display the product of digits of the number
cout << " The product of digits of " << num2 << " is: " << pro << endl;
}
``````

Sample Output:

``` Find the product of digits of a given number:
--------------------------------------------------
Input a number: 3456
The product of digits of 3456 is: 360
```

Flowchart:

C++ Code Editor: