Question

BC(8,31)

 

Answer 1

Ta có:

\(8=2^3\\ 31=31\)

\(\Rightarrow BCNN\left(8,31\right)=2^3.31=248.\)

\(\Rightarrow BCNN\left(8,31\right)=B\left(248\right)=\left\{0;248;496;744;...\right\}\)

Answer 2

Vì 31 là số nguyên tố

=>BC(8,31)=1

Answer 3

Ta có:

\(8=2^3;31=31\)

\(BCNN\left(8;31\right)=2^3.31=248\)

\(BC\left(8;31\right)=B\left(248\right)=\left\{0;248;496;744;...\right\}\)