填空题Let f(x) be defined as the absolute value of the difference between the smallest and largest odd factors of x greater than 1. For example, f(42)＝︱3-21︱＝18. What is the value of f(90)?____
填空题
Let f(x) be defined as the absolute value of the difference between the smallest and largest odd factors of x greater than 1. For example, f(42)＝︱3-21︱＝18. What is the value of f(90)?____
参考解析
解析：
90最大的奇因数为45，最小的奇因子为3，所以f(90)=45-3＝42。
90最大的奇因数为45，最小的奇因子为3，所以f(90)=45-3＝42。
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