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求n个相同因数a的积的运算叫做乘方,乘方的结果an叫做幂,a叫做底数,n叫做指数,an读作a的n次幂(或a的n次方).
The calculation of the product of n identical factors a is called a power. The power of the power an is called the power, a is the base, n is the exponent, and an is read as the power of n (or the power of n).