Question

3. Write a C program to find factorial of a given number​

Answer 1

Answer:

actorial Program in C

Factorial Program in C: Factorial of n is the product of all positive descending integers. Factorial of n is denoted by n!. For example:

5! = 5*4*3*2*1 = 120

3! = 3*2*1 = 6

Here, 5! is pronounced as "5 factorial", it is also called "5 bang" or "5 shriek".

The factorial is normally used in Combinations and Permutations (mathematics).

There are many ways to write the factorial program in c language. Let's see the 2 ways to write the factorial program.

Factorial Program using loop

Factorial Program using recursion

Factorial Program using loop

Let's see the factorial Program using loop.

#include<stdio.h>

int main()

{

int i,fact=1,number;

printf("Enter a number: ");

scanf("%d",&number);

for(i=1;i<=number;i++){

fact=fact*i;

}

printf("Factorial of %d is: %d",number,fact);

return 0;

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