Question

Tìm tất cả các ước của : \(-2;4;13;15;1\) ?

Answer 1

Ư \(\left(-2\right)=\left\{\pm1;\pm2\right\}\)

Ư \(\left(4\right)=\left\{\pm1;\pm2;\pm4\right\}\)

Ư \(\left(13\right)=\left\{\pm1;\pm13\right\}\)

Ư \(\left(15\right)=\left\{\pm1;\pm3;\pm5;\pm15\right\}\)

Ư \(\left(1\right)=\left\{\pm1\right\}\)

Answer 2

Ư_{(2) :} -1 ; 1 ; -2 ; 2

Ư₍₄₎ : -1 ; 1 ; -2 ; 2 ; -4 ; 4

Ư₍₁₃₎ : -1 ; 1 ; -13 ; 13

Ư₍₁₅₎ : -1 ; 1 ; -3 ; 3 ; -5 ; 5 ; -15 ; 15

Ư₍₁₎ : -1 ; 1

Answer 3

Ư(2) ={ -1; 1 ; -2 ; 2 }

Ư_{( 4 )} = { -1; 1; -2; 2; -4; 4 }

Ư (13) = {-1 ; 1 ; -13 ; 13 }

Ư (15 ) ={ -1 ;1 -3 ;3 ;-5;5 -15;15}

Ư (1) = {-1;1}

Answer 4

Ư $\left(-2\right)=\left\{\pm 1;\pm 2\right\}$

Ư $\left(4\right)=\left\{\pm 1;\pm 2;\pm 4\right\}$

Ư $\left(13\right)=\left\{\pm 1;\pm 13\right\}$

Ư $\left(15\right)=\left\{\pm 1;\pm 3;\pm 5;\pm 15\right\}$

Ư $\left(1\right)=\left\{\pm 1\right\}$