ƯC(540,360)=Ư(180)

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

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

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

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

\(168=2^3.3.7\)

\(ƯCLN\left(540;168\right)=2^2.3=12\)

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

\(b.735=3.5.7^2\)

\(350=2.5^2.7\)

\(ƯCLN\left(735;350\right)=5.7=35\)

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

GỢI ÝNHÉ!

CÁI ĐÓ LÀ TÌM ƯCLN CỦA 540;630

x+630=540-40

x+630=500

x=500-630

x=-130

x + 630 = 540 - 40

x + 630 =   500

x           = 500 - 630

x           =    130

x+630=540-40

x=500-630

x=-130