Question

bội chung của 36,40

Answer 1

BC(36;40)={0;360;720;...}

Answer 2

\(36=2^2\cdot3^2\\ 40=2^3\cdot5\\ \Rightarrow BCNN\left(36,40\right)=2^3\cdot3^2\cdot5=360\\ \Rightarrow BC\left(36,40\right)=B\left(360\right)=\left\{0;360;720;1080;....\right\}\)

Answer 3

36=2².3²

40=2³.5

BCNN(36,40)=360

=>BC(36,40)=BC(360)={0;360;720;1080;...}