Tìm hai số tự nhiên và () có tích bằng , biết rằng ƯCLN của chúng bằng .
Trả lời:
, .
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Vi giua hai so co 15 so khac nen hai so se hon kem nhau 16 don vi.
Vay so be la: (828 - 16) : 2 = 406
So lon la: 406 + 16 = 422
Đ/s
a) goi hai so la a ; b va a >b
vi UCLN(a,b)=18=>a=18k ; b=18q (trong do UCLN (k,q)=1 va k>q)
=>a+b=162
18k+18q =162
18(k+q)=162
k+q=9
ta co bang sau | |||||||||||||||||||||||
vay ........... | |||||||||||||||||||||||
21453
52542000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 | 542454550212.100000000000000000000000000000000000000000000000000000000000000000000000000000 |
Ta có sơ đồ:
Theo sơ đồ ta có:
Hiệu hai số là: 1 x (15 - 1) + 2 = 16
Số lớn là: (2023 + 16): 2 = \(\dfrac{2039}{2}\) (loại)
Vậy không có hai số tự nhiên nào thỏa mãn yêu cầu đề bài
where are you from la ban den tu dau