AMC 8 2017 Problem 7
AMC8 2017 年第 7 题
整除与因数★★☆☆☆
Let Z be a 6-digit positive integer, such as 247247, whose first three digits are the same as its last three digits taken in the same order. Which of the following numbers must also be a factor of Z?
表示一个 6 位的正整数，例如 247247，从左往右前三位数字和后三位的数字一样。下面哪个数一定也是 Z 的一个因子？
- A.11
- B.19
- C.101
- D.111
- E.1111
正确答案 · Correct Answer
A
解析 · Solution
解析整理中
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