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 Interactive Checkpoint
 Factorial:  The expression n! is a symbol to indicate the product of all counting numbers beginning with n and counting backwards to 1.

Answer the following questions about factorials.

Input your answer and press tab to view a graded response

Graded Response
a) Evaluate 3! a)
b) What factorial has a value equal to 120? b) !
c) What is 0! ? c)