5x4x3x2x1=120
120 5x4x3x2x1=120
example: 5 factorial notation is 5x4x3x2x1= ______that's factorial notationIt is written as 5!
25 and over ----------------------------------------------------------------------------------------------- The number of ways is 5x4x3x2x1= 120 ways
The exclamation point is called a factorial. ex. 5!=5x4x3x2x1 10!=10x9x8x7x6x5x4x3x2x1 etc.
5! = 5 factorial = 5x4x3x2x1 = 20x6 = 120
5! = 5x4x3x2x1 = 120
5x4x3x2x1=120
120 beacause factorial means 5x4x3x2x1 so that = 120!
The answer is 120. 5x4x3x2x1=120 :-)
120 5x4x3x2x1
5! = 5x4x3x2x1 = 120
120 5x4x3x2x1=120
5 factorial 5x4x3x2x1 or 120 times
1120 times because it's 5x4x3x2x1.
(13x12x11x13x12)/ (5x4x3x2x1) = 1859
Assuming without repeats: 40C5 = 40!/(40-5)!5! = 40x39x38x37x36x35x34x...x2x1/(35x34x...x2x1)x(5x4x3x2x1) = (5x4x2)x(3x13)x38x37x36/5x4x3x2x1 = 13x38x37x36 = 658008