AMC 8 1997 Problem 25
AMC8 1997 年第 25 题
余数与同余★★★★☆
All of the even numbers from 2 to 98 inclusive, excluding those ending in 0, are multiplied together. What is the rightmost digit (the units digit) of the product?
将 2 到 98(含)之间所有不以 0 结尾的偶数相乘。乘积的最右边数字(个位数字)是多少?
- A.0
- B.2
- C.4
- D.6
- E.8
正确答案 · Correct Answer
D
解析 · Solution
解析整理中
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