More C Programming Examples / Practice Programs

Write C program to find factorial of any number

Introduction

Calculating power of a number using while loop

#include <stdio.h>

int main()
{
    int num,i;
    long long fact=1;

    // Reading a number from user
    printf("Enter any number to calculate factorial: ");
    scanf("%d",&num);
    fact = 1;
    i = 1;

      //Run loop from 1 to number entered by user
    while(i <= num)
    {
        fact = fact * i;
        i++;
    }
     printf("Factorial of %d = %lld", num, fact);
 return 0;
}

Calculating power of a number using for loop

#include <stdio.h>

int main()
{
    int i, num;
    long long fact=1;

    // Reading a number from user
    printf("Enter any number to calculate factorial: ");
    scanf("%d", &num);

    //Run loop from 1 to number entered by user
    for(i=1; i<=num; i++)
    {
        fact = fact * i;
    }

    printf("Factorial of %d = %lld", num, fact);

    return 0;
}

Result

Write C program to find factorial of any number

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