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13问答网 > 奥数题由2000个1组成一个2000位数除以7以后余数是多少的答案

奥数题由2000个1组成一个2000位数除以7以后余数是多少的答案

2025-03-15 22:48:21

推荐回答（2个）

回答1：

11=1*7+4
41=5*7+6
61=8*7+5
51=7*7+2
21=3*7
所以111111能被7整除，则111111的正整数倍亦能被7整除.
而2000除以6的馀数为2，所以该2000位数除以7的馀数等於11除以7的馀数，为4.

回答2：

你除一下看看，应该是循环，

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