là 12

nhớ k cho mình nha 

=12

HT BN HIỀN

Ta có:

\(540=2^2.3^3.5\)

\(168=2^3.3.7\)

Vậy: \(ƯCLN\left(540;168\right)=2^2.3=12\)

\(ƯC\left(540;168\right)=\left\{1;2;3;4;6;12\right\}\)

\(a,ƯCLN\left(540,168\right)=12\\ \RightarrowƯC\left(540,168\right)=Ư\left(12\right)=\left\{-12;-6;-4;-3;-2;-1;1;2;3;4;6;12\right\}\\ b,ƯCLN\left(735,350\right)=35\\ \RightarrowƯC\left(735,350\right)=Ư\left(35\right)=\left\{-35;-7;-5;-1;1;5;7;35\right\}\)

\(a.540=2^2.3^3.5\)

\(168=2^3.3.7\)

\(ƯCLN\left(540;168\right)=2^2.3=12\)

\(ƯC\left(540;168\right)=\left\{12;24;36;...\right\}\)

\(b.735=3.5.7^2\)

\(350=2.5^2.7\)

\(ƯCLN\left(735;350\right)=5.7=35\)

\(ƯC\left(735;350\right)=\left\{35;70;105;...\right\}\)

\(b,ƯCLN\left(70,540,1225\right)=35\\ \RightarrowƯC\left(70,540,1225\right)=Ư\left(35\right)=\left\{1;5;7;35\right\}\\ d,ƯCLN\left(48,24,60\right)=12\\ \RightarrowƯC\left(48,24,60\right)=Ư\left(12\right)=\left\{1;2;3;4;6;12\right\}\\ g,ƯCLN\left(3780,4320,5184\right)=108\\ \RightarrowƯC\left(3780,4320,5184\right)=Ư\left(108\right)=\left\{1;2;3;4;6;9;12;18;27;36;54;108\right\}\)

a)225=3².5²

   270=2.5.3³

   360=2³.3².5

=> ƯCLN 225;270;360=3².5=45

=>ƯC225;270;360=ước 45=1;3;5;9;15;45

b)540=2².3³.5

   756=3³.2².7

   1512=3³.2³.7

=>ưcln 540;756;1512=2².3³=108

=>ưc 540;756;1512=ư 108=1;2;3;4;6;9;12;18;24;27;36;48;54;72;108

 Ơi có câu trả lời Không

Đề ƯCLN của 360và400 bằng bao nhiêu vậy

Trả lời

a)84,120,216

Ư (84) =  {1;2;3;4;6;7;12;14;...;84}

Ư (120) = {1;2;3;4;5;6;8;10;12;15;20;24;30;....120}

Ư (216) = {1;2;3;4;6;8;...;216}

ƯC (84;120;216) = {1;2;3;4;12}

84=2².3.7

120=2³.3.5

216=2³.3³

ƯCLN (84,120,216) = 2².3=12.

BCNN (84,120,216) = 2³.3³.5.7= 7560.

a) Ta có : 225 = 3². 5²

270 = 2 . 3³ . 5

360 = 2³. 3².5

→ ƯCLN= 3². 5 = 45

→ ƯC( 225,270,360)= Ư(45)

→ Ư(45) = \(\left\{1;3;5;9;15;45\right\}\)

Vậy ƯC( 225 ; 270; 360) =\(\left\{1;3;5;9;15;45\right\}\)

b) Ta có : 540 = 2². 3³.5

756 = 2².3³.7

1512 = 2³. 3³.7

→ ƯCLN( 540;756;1512)=2².3³=108

→ƯC(540;756;1512)=Ư( 108)= \(\left\{1;2;3;4;6;9;12;18;27;36;54;108\right\}\)

Vậy ƯC( 540; 756;1512)= \(\left\{1;2;3;4;6;9;12;18;27;36;54;108\right\}\)

a, Ta có : 225 = \(3^2.5^2\)

270 = \(2.3^3.5\)

360 = \(2^3.3^2.5\)

ƯCLN\(_{\left(225,270,360\right)}\)= \(3^2.5=45\)

\(ƯC_{\left(225,270,360\right)}=Ư_{\left(45\right)}=\left\{1;3;5;9;15;45\right\}\)b, Ta có : 540 = \(2^2.3^3.5\)

756 = \(2^2.3^3.7\)

1512 = \(2^3.3^3.7\)

\(\RightarrowƯCLN_{\left(540,756,1512\right)}=2^2.3^3=108\)

\(ƯC_{\left(540,756,1512\right)}=Ư_{\left(108\right)}=\left\{1;2;3;4;6;9;12;18;108\right\}\)

mn ơi help mik cái

a) Ta có:

90 = 2 × 3² × 5

126 = 2 × 3² × 7

=> ƯCLN(90; 126) = 2 × 3² = 18

=> ƯC(90; 126) = Ư(18) = {1 ; -1 ; 2 ; -2 ; 3 ; -3 ; 6 ; -6 ; 9 ; -9 ; 18 ; -18}

b) Do 480 chia hết cho a, 600 chia hết cho a

=> a thuộc ƯC(480; 600) 

Mà a lớn nhất => a = ƯCLN(480; 600) = 120

gì thế ban?

Ta có : 648 = 2³.3⁴
540 = 2².3³.5
=> ƯCLN(648; 540) = 2².3³ = 108
=> ƯC(648; 540) = Ư(108) = {\(\pm1;\pm2;\pm3;\pm4;\pm6;\pm9;\pm12;\pm18;\pm27;\pm36;\pm54;\pm108\)}
@Hoàng Việt

Ta có: \(648=2^3.3^4\)

\(540=2^2.3^3.5\)

\(\Rightarrow\) \(ƯCLN\) (648;540) = \(2^2.3^3=4.27=108\)

\(\RightarrowƯC\left(648;540\right)\inƯ\left(108\right)\)

\(\RightarrowƯC\left(648;108\right)\in\left\{\pm1;\pm2;\pm3;\pm4;\pm6;\pm9;\pm12;\pm18;\pm24;\pm36;\pm108\right\}\)Chúc bn hk tốt!