C Program to Find Product of Two Numbers without Recursion

This is a C program to find product of 2 numbers without using recursion.

Problem Description

This C Program Finds the Product of 2 Numbers without using Recursion.

Problem Solution

This C Program using iteration, finds the product of 2 numbers without using the multiplication operator.

Program/Source Code

Here is the source code of the C program to display a linked list in reverse. The C program is successfully compiled and run on a Linux system. The program output is also shown below.

 * C Program to find Product of 2 Numbers without using Recursion
#include <stdio.h>
int product(int, int);
int main()
    int a, b, result;
    printf("Enter two numbers to find their product: ");
    scanf("%d%d", &a, &b);
    result = product(a, b);
    printf("Product of %d and %d is %d\n", a, b, result);
    return 0;
int product(int a, int b)
    int temp = 0;
    while (b != 0)
        temp += a;
    return temp;
Program Explanation

In this C program, we are reading the two numbers. The product() function is used to compute the product of two numbers. In the product function initially declare the value of ‘temp’ variable as 0.


The while loop is used to check the value of ‘b’ variable is not equal to 0. If the condition is true, then execute the loop. Add the value of ‘temp’ and ‘a’ variables and decrement the value of ‘b’ variable. print the product of two numbers.

Runtime Test Cases
$ cc pgm19.c
$ a.out
Enter two numbers to find their product:  89  458
Product of 89 and 458 is 40762

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If you wish to look at other example programs on Simple C Programs, go to Simple C Programs. If you wish to look at programming examples on all topics, go to C Programming Examples.

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Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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