#challenge



💻 Is the Input Factorial of an Integer? | #easy



Create a function that checks if a given integer is exactly the factorial of an integer or not. true if it is, false otherwise.



Examples:



isFactorial(2) ➞ true

// 2 = 2 * 1 = 2!



isFactorial(27) ➞ false



isFactorial(24) ➞ true

// 24 = 4 * 3 * 2 * 1 = 4!



🏆 Leave your solutions in the comments. The solution will be posted below in a couple of hours 👇



#interview