Program to calculate product of digits of a number

Given a number, the task is to find the product of the digits of a number.

Examples:

Input: n = 4513
Output: 60

Input: n = 5249
Output: 360

General Algorithm for product of digits in a given number:

  1. Get the number
  2. Declare a variable to store the product and set it to 1
  3. Repeat the next two steps till the number is not 0
  4. Get the rightmost digit of the number with help of remainder ‘%’ operator by dividing it with 10 and multiply it with product.
  5. Divide the number by 10 with help of ‘/’ operator
  6. Print or return the product

Below is the solution to get the product of the digits:

C++

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// cpp program to compute
// product of digits in the number.
#include<bits/stdc++.h>
using namespace std;
  
/* Function to get product of digits */
int getProduct(int n)
{
    int product = 1;
  
    while (n != 0) 
    {
        product = product * (n % 10);
        n = n / 10;
    }
  
    return product;
}
  
// Driver program
int main()
{
    int n = 4513;
    cout << (getProduct(n));
}
  
// This code is contributed by
// Surendra_Gangwar

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Java

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// Java program to compute
// product of digits in the number.
  
import java.io.*;
  
class GFG {
  
    /* Function to get product of digits */
    static int getProduct(int n)
    {
        int product = 1;
  
        while (n != 0) {
            product = product * (n % 10);
            n = n / 10;
        }
  
        return product;
    }
  
    // Driver program
    public static void main(String[] args)
    {
        int n = 4513;
  
        System.out.println(getProduct(n));
    }
}

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Python3

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# Python3 program to compute
# product of digits in the number.
  
# Function to get product of digits 
def getProduct(n):
  
    product = 1
  
    while (n != 0):
        product = product * (n % 10)
        n = n // 10
  
    return product
  
# Driver Code
n = 4513
print(getProduct(n))
  
# This code is contributed
# by mohit kumar

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C#

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// C# program to compute 
// product of digits in the number. 
using System;
  
class GFG 
  
    /* Function to get product of digits */
    static int getProduct(int n) 
    
        int product = 1; 
  
        while (n != 0) 
        
            product = product * (n % 10); 
            n = n / 10; 
        
  
        return product; 
    
  
    // Driver program 
    public static void Main() 
    
        int n = 4513; 
  
        Console.WriteLine(getProduct(n)); 
    
}
  
// This code is contributed by Ryuga

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PHP

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<?php
  
<?php
  
// PHP program to compute
// $product of digits in the number.
  
/* Function to get $product of digits */
  
function getProduct($n)
{
    $product = 1;
  
    while ($n != 0) 
    {
        $product = $product * ( $n % 10);
        $n = intdiv($n , 10);
    }
  
    return $product;
}
  
// Driver code
  
$n = 4513;
echo getProduct($n);
  
  
// This code is contributed by
// ihritik
  
?>

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Output:

60


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