People just don't know simple math, and it's worse when they claim to be a math nerd...

The answer is 120. Easy math. I'll explain the best I can. Also, I'm not gonna be responsible for anyone to be upset. 👌

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DrWatson · 70-79, M

5! = 120.

The exclamation mark is the factorial symbol, and this problem was cleverly constructed so that correct answer is given in a form that looks, at first, to be the predictable wrong answer.

5! = 5 x4x3x2x1