# Find all factorial numbers less than or equal to n in C++

C++Server Side ProgrammingProgramming

Here we will see how to print all factorial numbers less than or equal to n, a number N is said to be factorial number if it is a factorial of a positive number. So some factorial numbers are 1, 2, 6, 24, 120.

To print factorial numbers, we do not need to find the factorial directly. Starting from i = 1, print factorial*i. Initially factorial is 1. Let us see the code for better understanding.

## Example

Live Demo

#include <iostream>
using namespace std;
void getFactorialNumbers(int n) {
int fact = 1;
int i = 2;
while(fact <= n){
cout << fact << " ";
fact = fact * i;
i++;
}
}
int main() {
int n = 150;
getFactorialNumbers(n);
}

## Output

1 2 6 24 120
Published on 24-Oct-2019 13:08:48