+3200
what is the exclamation mark thing on the calculator?
The exclamation mark in math means "factorial" . . . okay, now, what does factorial mean?
The factorial following an integer means to multiply that integer by every integer less than it.
examples: 3! means 3 x 2 x 1 = 6
4! means 4 x 3 x 2 x 1 = 24
5! means 5 x 4 x 3 x 2 x 1 = 120
6! means 6 x 5 x 4 x 3 x 2 x 1 = 720
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