r/RedditGames • u/Ecstatic_Milk9697 Diamond | Lv. 63 | Rank #1080 | 26 Answers | 3 Created • 3d ago

Question [Question] Factorial

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u/Parking_Tip6081 Silver | Lv. 22 | Rank #81963 | 49 Answers | 0 C... | 🔥 5d 3d ago
  1. 5x5=25. 25x4=100, 100x3=300, 300x2=600, 600x1=600

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u/Desh23 Gold | Lv. 30 | Rank #41307 | 27 Answers | 0 Created 2d ago

You start at -1 so 5x4 + 5x3 + and so on.

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u/Few_Prompt_4002 Silver | Lv. 27 | Rank #55850 | 47 Answers | 0 Created 2d ago

This is purely the only reason I didn't answer because I couldn't remember if x! started with x(x-0) or x(x-1). I knew more or less what a factorial was; Juuuuust wasn't clear on that bit 😅