Question

[Nguyễn Khánh Linh]

Tìm

BCNN(15, 16, 18)

BC( 15, 16, 18)

Answer 1

[•Mυη•]

Ta có :

\(15=3.5\)

\(16=2^4\)

\(18=2.3^2\)

\(\Rightarrow BCNN\left(15;16;18\right)=2^4.3^2.5=720\)

\(\Rightarrow BC\left(15;16;18\right)=B\left(720\right)=\left\{0;720;1440;...\right\}\)

Answer 2

[Hoàng Thanh Huyền]

Ta có: 15= 3.5

          16= 2⁴

          18= 2.3²

---> BCNN (15;16;18)= 2⁴.3².5= 720

----> BC (15;16;18) E {0;720; 1440;2160;2880;...}

_Học tốt_