Answer
24
Explanation
4! This is read as 4 factorial.
It means;
4! = 4×3×2×1
= 24
Answer is 24.
4! can be written as 1 x 2 x 3 x 4
This is called a Factorial, which is the product of integers less than or equal to n but greater than or equal to 1.
so for example, 8!
1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 = 40,320
