音标：[fæk'tɒ:riәl]
a. 因子的, 阶乘的, 代理商的
n. 阶乘
【计】 阶乘
英汉词典
factorial的短语、例句：
factorial adj, n (mathematics 数) (of the) product of a whole number and all those whole numbers below it 阶乘; 阶乘的; 因数的
factorial 5 (represented as 5!), ie the product of 5 4 3 2 15的阶乘（记作5!, 为54321的乘积）.

标签：factorial,用法,音标,短语