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60 = 22 . 3 . 5
180 = 22 . 32 . 5
\(\RightarrowƯCLN\left(60,180\right)=2^2.3.5=60\)
Ta co :
60=22.3.5
180=22.32.5
=> UCLN(60,180)=22.3.5=60
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Ư(60) = {1 ; 2 ; 3 ; 4 ; 5 ; 6 ; 10 ; 12 ; 15 ; 20 ; 30 ; 60}
Ư(80) = {1 ; 2 ; 4 ; 5 ; 8 ; 10 ; 16 ; 20 ; 40 ; 80}
ƯC(60;80) = {1 ; 2 ; 4 ; 5 ; 10 ; 20}
k nha
Ư(60)={1;2;3;4;5;6;10;12;15;20;30;60}
Ư(80)={1;2;4;5;8;10;16;20;40;80}
ƯC(60,80)={1,2,4,5,10,20}
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a) 90 = 2.32.5
126 = 2.32.7
UCLN(90,126) = 2.32 = 18
ƯC(90,126) = Ư(18) = {1;2;3;6;9;18}
b) 180 = 22.32.5
234 = 2.32.13
UCLN(180,234) = 2.32 = 18
ƯC(180,234) = Ư(18) = {1;2;3;6;9;18}
a ) UCLN ( 90 , 126 ) = 18
UC ( 90 , 126 ) \(\in\left\{1;2;3;6;9;18\right\}\)
b ) UCLN ( 180 , 234 ) = 18
\(UC\left(180,234\right)\in\left\{1;2;3;6;9;18\right\}\)
Nhớ k cho mk nha nguyen huyen tram
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\(a,16=2^4;24=3.2^3\)
\(=>\left(16;24\right)=2^3=8\)
\(b,180=2^2.3^2.5;234=2.3^2.13\)
\(=>\left(180;234\right)=2.3^2=18\)
\(c,60=3.4.5;90=2.3^2.5;135=3^3.5\)
\(=>\left(60,90,135\right)=3.5=15\)
\(a.16=2^4\)
\(24=2^3.3\)
\(\RightarrowƯCLN\left(16,24\right)=2^3=8\)
\(b.180=2^2.3^2.5\)
\(234=2.3^2.13\)
\(\RightarrowƯCLN\left(180,234\right)=2.3^2=18\)
\(c.60=2^2.3.5\)
\(90=2.3^2.5\)
\(135=3^3.5\)
\(\RightarrowƯCLN\left(60,90,135\right)=3.5=15\)
mk nhé bạn ^...^ ^_^
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180 chia hết 60.
Do đó ƯCLN(60; 180) = 60
Vì 180 chia hết cho 60 nên ƯCLN(60;180) = 60