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30 tháng 11 2018
Vậy : như thế nào là số có UCLN=1, mk chưa hiểu lắm ???
Đáp số :
1 + 1 = 2
@_@ khó quá ^^
2 chắc chắn 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%