a)
a |
8 |
24 |
140 |
b |
10 |
28 |
60 |
ƯCLN(a, b) |
2 |
4 |
20 |
BCNN(a, b) |
40 |
168 |
420 |
ƯCLN(a, b) . BCNN(a, b) |
80 |
672 |
8 400 |
a.b |
80 |
672 |
8 400 |
b) Nhận xét:
ƯCLN(a, b) . BCNN(a, b) = a . b