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n is a four-digit positive integer such that its four digits are all different and each digit is either 4, 7, 8, or 9.
Quantity A
The remainder when n is divided by 5
Quantity B
The remainder when n is divided by 9
A显示答案
· 相关考点
1.8.6 能被特殊数字整除数字的规律
1.8.6 能被特殊数字整除数字的规律
以上解析由 考满分老师提供。
