5! = 5 x 4 x 3 x 2 x 1 = 120.
You can find this in a calculator also.
Press 5, Math, go to PRB, press 4, press Enter.
Try it.
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25 factorial equals 15,511,210,043,330,985,984,000,000
lets say the equation says 5! that means 5x4x3x2x1 which equals 120 it is call five factorial based on what number is put in front of it it could be six factorial, seven factorial, etc..
Zero factorial, written as 0!, equals 1. This is a simple math equation.
explain how to evaluate an algebraic expression for given variables. how would we evaluate the expression "3x-4y+9" when x=2and y=5?
0!=1! 1=1 The factorial of 0 is 1, not 0