Question

Answer 1

giúp với help me :<

Answer 2

a,Ta có:

\(54=2.3^3\\ 36=2^2.3^2\\ \RightarrowƯCLN\left(54;36\right)=2.3^2=2.9=18\)

\(\RightarrowƯC\left(54;36\right)=Ư\left(18\right)=\left\{\pm1;\pm2;\pm3;\pm6;\pm9;\pm18\right\}\)

b,Ta có:

\(65=5.13\\ 125=5^3\\ \RightarrowƯCLN\left(65;125\right)=5\\ \RightarrowƯC\left(65;125\right)=Ư\left(5\right)=\left\{\pm1;\pm5\right\}\)

 

Answer 3

a,Ta có:

54=2.3336=22.32⇒ƯCLN(54;36)=2.32=2.9=1854=2.3336=22.32⇒ƯCLN(54;36)=2.32=2.9=18

⇒ƯC(54;36)=Ư(18)={±1;±2;±3;±6;±9;±18}⇒ƯC(54;36)=Ư(18)={±1;±2;±3;±6;±9;±18}

b,Ta có:

65=5.13125=53⇒ƯCLN(65;125)=5⇒ƯC(65;125)=Ư(5)={±1;±5}