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zhaphuongthaoz
2 năm trước
Câu 1) Phân tích số 84 ra thừa số nguyên tố rồi tìm tập hợp ước Câu 2) Chỉ ra hai số tự nhiên mỗi số có trong 3 ước nguyên tố Câu 3) Viết tất cả các số nguyên tố<30
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