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\(a,ƯC\left(40,24\right)=Ư\left(8\right)=\left\{...\right\}\\ b,ƯC\left(12,52\right)=Ư\left(4\right)=\left\{...\right\}\\ c,ƯC\left(36,990\right)=Ư\left(18\right)=\left\{...\right\}\\ d,ƯC\left(54,36\right)=Ư\left(9\right)=\left\{...\right\}\\ e,ƯC\left(10,20,70\right)=Ư\left(10\right)=\left\{...\right\}\\ f,ƯC\left(25,55,75\right)=Ư\left(5\right)=\left\{...\right\}\\ g,ƯC\left(80,144\right)=Ư\left(16\right)=\left\{...\right\}\\ h,ƯC\left(63,2970\right)=Ư\left(9\right)=\left\{...\right\}\\ i,ƯC\left(65,125\right)=Ư\left(5\right)=\left\{...\right\}\\ j,ƯC\left(9,18,72\right)=Ư\left(9\right)=\left\{...\right\}\\ k,ƯC\left(24,36,60\right)=Ư\left(12\right)=\left\{...\right\}\\ l,ƯC\left(16,42,86\right)=Ư\left(2\right)=\left\{..\right\}\)
3:
a: \(40=2^3\cdot5;24=2^3\cdot3\)
=>\(ƯCLN\left(40;24\right)=2^3=8\)
=>\(ƯC\left(40;24\right)=Ư\left(8\right)=\left\{1;-1;2;-2;4;-4;8;-8\right\}\)
b: \(12=2^2\cdot3;52=2^2\cdot13\)
=>\(ƯCLN\left(12;52\right)=2^2=4\)
=>\(ƯC\left(12;52\right)=\left\{1;-1;2;-2;4;-4\right\}\)
c: \(36=2^2\cdot3^2;990=2\cdot3^2\cdot5\cdot11\)
=>\(ƯCLN\left(36;990\right)=3^2\cdot2=18\)
=>\(ƯC\left(36;990\right)=\left\{1;-1;2;-2;3;-3;6;-6;9;-9;18;-18\right\}\)
2:
a: \(12=2^2\cdot3;18=3^2\cdot2\)
=>\(ƯCLN\left(12;18\right)=2\cdot3=6\)
b: \(12=2^2\cdot3;10=2\cdot5\)
=>\(ƯCLN\left(12;10\right)=2\)
c: \(24=2^3\cdot3;48=2^4\cdot3\)
=>\(ƯCLN\left(24;48\right)=2^3\cdot3=24\)
d: \(300=2^2\cdot3\cdot5^2;280=2^3\cdot5\cdot7\)
=>\(ƯCLN\left(300;280\right)=2^2\cdot5=20\)
b)
Ư(12) ={1; 2; 3; 4; 6; 12} Ư(18) {1; 2; 3; 6; 9; 18}
ƯC(12, 18) = {1; 2; 3; 6 }
vậy ƯCLN (12, 18) = 6
a)
Ư(12) ={1; 2; 3; 4; 6; 12} Ư(18) {1; 2; 3; 6; 9; 18}
ƯC(12, 18) = {1; 2; 3; 6 }
vậy ƯCLN (12, 18) = 6
12=2^2x3
52=2^2x13
=>ƯCLN(12,52)=2^2=4
=>ƯC(12,52)=Ư(4)={1;2;4}hết
a: ƯCLN(40;24)=8
ƯC(40;24)=Ư(8)={1;2;4;8}
b: UCLN(80;144)=16
UCLN(80;144)={1;2;4;8;16}
c: UCLN(9;18;72)=9
ƯC(9;18;72)={1;3;9}
d: ƯCLN(25;55;75)=5
ƯC(25;55;75)={1;5}
\(a,40=2^3.5\\ 24=2^3.3\\ \Rightarrow UCLN_{\left(24;40\right)}=2^3=8\\ \RightarrowƯC_{\left(40;24\right)}=Ư_{\left(8\right)}=\left\{1;2;4;8\right\}\\ b,80=2^4.5\\ 144=2^4.3^2\\ \Rightarrow UCLN_{\left(80;144\right)}=2^4=16\\ \RightarrowƯC_{\left(80;144\right)}=Ư_{\left(16\right)}=\left\{1;2;4;8;16\right\}\\ c,9=3^2\\ 18=2.3^2\\ 72=3^2.2^3\\ \Rightarrow UCLN_{\left(8;18;72\right)}=3^2=9\\ \RightarrowƯC_{\left(9;18;72\right)}=Ư_{\left(9\right)}=\left\{1;3;9\right\}\\ d,25=5^2\\ 55=5.11\\ 75=5^2.3\\ \Rightarrow UCLN_{\left(25;55;75\right)}=5\\ \RightarrowƯC_{\left(25;55;75\right)}=Ư_{\left(5\right)}=\left\{1;5\right\}\)
a) Ta có :
40 = 23 . 5
24 = 23 . 3
=> ƯCLN ( 40 ; 24 ) = 23 = 8
=> ƯC ( 40 ; 24 ) = Ư ( 8 ) = { 1 ; 2 ; 4 ; 8 }
b) Ta có :
12 = 22 . 3
52 = 22 . 13
=> ƯCLN ( 12 ; 52 ) = 22 = 4
=> ƯCLN ( 12 ; 52 ) = Ư ( 4 ) = { 1 ; 2 ; 4 }
c) Ta có :
36 = 22 . 32
990 = 2 . 32 . 5 . 11
=> ƯCLN ( 36 ; 990 ) = 2 . 32 = 18
=> ƯC ( 36 ; 990 ) = Ư ( 18 ) = { 1 ; 2 ; 3 ; 6 ; 9 ; 18 }
d) Ta có :
54 = 2 . 33
36 = 22 . 32
=> ƯCLN ( 54 ; 36 ) = 22 . 33 = 18
=> ƯC ( 54 ; 36 ) = Ư ( 18 ) = { 1 ; 2 ; 3 ; 6 ; 9 ; 18 }
a)40 và 24
ta có:
40=2^3*5
24=2^3*3
=> ƯCLN(40;24) =2^3=8
=>ƯC(40;24)=Ư(8)={1;2;4;8}
những câu còn lại tương tự bn nhé
a) 40 và 24
Ta có: 40 = 23 . 5
24 = 23 . 3
=> ƯCLN(40; 24) = 23 = 8
=> ƯC(40; 24) \(\in\) Ư(8)
=> ƯC(40; 24) \(\in\) Ư(8) = { 1; 2; 4; 8 }
Các câu còn lại tương tự nha bạn
ƯCLN(24,40)=8
=>ƯC(24,40)=Ư(8)=(1,2,4,8)
các cau khac tuong tu nhe ban
a= 4
b = 4
c= 6
d=6
tick đuê!!!!
câu b,c bài này thì sao