Why Does 0! = 1? — The Answer Surprises Everyone
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YouTubeBoundless Math
Why Does 0! = 1? — The Answer Surprises Everyone
Why does 0! = 1? It seems wrong, but there's a beautiful pattern that proves it. Watch the factorial sequence in reverse: 5! = 120, 4! = 24, 3! = 6, 2! = 2, 1! = 1. Each step divides by the current number. So 0! = 1! ÷ 1 = 1. There's also exactly one way to arrange zero objects — do nothing. ⏱ Timeline: 0:00 — What is 0! ? 0:04 — Watch ...
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