When asked to calculate the following 7! your solution will look something like: 7! = 7 x 6 x 5 x 4 x 3 x 2 x 1 = 5040. Your calculator will likely have a key that will perform this operation for you.
Try some on your own and then check with the factorial calculator below:
1. 9!
2. 1!
3. 8!
--
6!
4. 19!
--
13!
5. Simplify: (n + 2) (n + 1)!
Try the Online Factorial Calculator - be sure to enable active content in your browser which is often blocked.
Solutions:
1. 362 880
2. 1
3. 56
4. 19 535 040
5. = (n + 2) [(n
+ 1)n(n - 1)(n - 2) ...3 x 2 x 1] Related Resources:
=== (n + 2)!
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