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What is factorial notation?
example: 5 factorial notation is 5x4x3x2x1= ______that's factorial notationIt is written as 5!
What is 5 factorial?
It is 5*4*3*2*1 =120
What is 9 factorial?
9 factorial = 9! = (9*8*7*6*5*4*3*2*1) = 362880
What is the last digit of factorial 99?
Well, isn't that a happy little question! When you calculate the factorial of a number, you multiply that number by all the positive integers less than it. The last digit of factorial 99 is 0, because there are lots of factors of 2 and 5 in the multiplication, creating zeros at the end. Just imagine all those zeros as little trees in a beautiful forest of numbers!
What does an exclamation mark after a number mean?
Mathematically it represents a factorial of that number. A factorial is when you take each number up to value and multiply them. So factorial 5 is 1 x 2 x 3 x 4 x 5. Factorial 11 is 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 x 11. This is often written with the number you are getting the factorial for, followed by an exclamation mark.
