4的阶乘是24,即4×3×2×1。

The factorial of 4 is 24, which is 4×3×2×1.

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The factorial of 4 is 24, which is 4×3×2×1.

factorial 是数学术语,由名词 factor(因数)加上后缀 -ial(表示"与...相关的")构成,指"阶乘",即从1到该数所有整数的乘积。

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