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C++ Program to find Product of Digits in a Number

by suresh

Write a C++ Program to find Product of Digits in a Number with an example. In this C++ product of digits in a number example, while loop checks whether the number is greater than 0.

  • reminder = number % 10 – It gives the last digit of a number.
  • digitProduct = digitProduct * reminder – It multiplies the last digit with digitProduct. 
  • number = number / 10 – it removes the last digit from the number.
#include<iostream>

using namespace std;

int main()
{
	int number, reminder, digitProduct = 1;
	
	cout << "\nPlease Enter the Number to find the Digits Product =  ";
	cin >> number;
	
	while (number > 0)
	{
    	reminder = number % 10;
    	digitProduct = digitProduct * reminder;
    	number = number / 10;
    	
    	cout << "\nDigit = " << reminder << " and the Digit Product = " << digitProduct;
	}
	cout << "\n\nThe Product of all Digits in a given Number = " << digitProduct;
		
 	return 0;
}
C++ Program to find Product of Digits in a Number 1

C++ Program to find Product of Digits in a Number using For Loop

#include<iostream>

using namespace std;

int main()
{
	int number, reminder, digitProduct;
	
	cout << "\nPlease Enter the Number to find the Digits Product =  ";
	cin >> number;
	
	for (digitProduct = 1; number > 0; number = number / 10)
	{
    	reminder = number % 10;
    	digitProduct = digitProduct * reminder;
	}
	cout << "\nThe Product of all Digits in a given Number = " << digitProduct;
		
 	return 0;
}
C++ Program to find Product of Digits in a Number 2

C++ Program to calculate the Product of Digits in a Number using Functions

#include<iostream>

using namespace std;

int productOfDigits(int number)
{
	int reminder, digitProduct;
	
	for (digitProduct = 1; number > 0; number = number / 10)
	{
    	reminder = number % 10;
    	digitProduct = digitProduct * reminder;
	cout << "\nDigit = " << reminder << " and the Digit Product = " << digitProduct;
	}
	return digitProduct;
}

int main()
{
	int number, digitProduct;
	
	cout << "\nPlease Enter the Number to find the Digits Product =  ";
	cin >> number;
	
	digitProduct = productOfDigits(number);
	
	cout << "\n\nThe Product of all Digits in a given Number = " << digitProduct;
		
 	return 0;
}
C++ Program to find Product of Digits in a Number 3

C++ Program to calculate the Product of Digits in a Number using Recursion

#include<iostream>

using namespace std;

int productOfDigits(int number)
{	
	static int reminder, digitProduct = 1;
 
  	if(number > 0)
  	{
    	reminder = number % 10;
    	digitProduct = digitProduct * reminder;
    	productOfDigits( number / 10);
    	return digitProduct;
 	}
 	else
   		return 0;
}

int main()
{
	int number, digitProduct;
	
	cout << "\nPlease Enter the Number to find the Digits Product =  ";
	cin >> number;
	
	digitProduct = productOfDigits(number);
	
	cout << "\nThe Product of all Digits in a given Number = " << digitProduct;
		
 	return 0;
}
C++ Program to find Product of Digits in a Number 4

Placed Under: CPP Examples

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