C Program to find factorial. factorial number program in c programming language. This program helps you to find the factorials number or not in c. The multiplication of the number is known as factorial number in c language to check the number is fact or not.

#include<stdio.h> int main() { int i,fact=1,num; printf("Enter a num"); scanf("%d",&num); for(i=1;i<=num;i++) { fact=fact*i; } printf("%d",fact); return 0; }

Output

Enter a num 5 120

## Factorial Number

The product of all positive integers less than or equal to a particular positive integer, indicated by that integer and an exclamation point in mathematics. The factorial zero is equal to one. To find the factorial of a number, multiply it by the previous number’s factorial value. For instance, to understand the value of 6! 720 is obtained by multiplying 120 (the factorial of 5) by 6.

## Why Factorial Numbers Ends with Exclamation

The factorial function is a mathematical formula with the exclamation mark “!” as its symbol. You must multiply all the integers and positives that occur between the number in the formula and the number 1 in the Factorial formula.

## For Loop to Execute C Program to Find Factorial

A for loop is a type of repetition control structure that allows us to design a loop that is run a set number of times. The loop allows us to complete a n number of steps in a single line.

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