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有ABCDE=111111*E 111111=3*7*11*13*37 又ABCDE是五位數 所以ABCDE=37037*E或15873*E 第一種情况A為3的倍數 ABCDE為37037不行 第二種情况A為7的倍數 ABCDE為79365 79365*7=555555 可以,所以ABCDE為79365
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