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a:UCLN(12;18)=6
BCNN(12;18)=36
b: UCLN(24;36;60)=12
BCNN(24;36;60)=360
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
\(a,ƯC\left(40,24\right)=Ư\left(8\right)=\left\{...\right\}\\ b,ƯC\left(12,52\right)=Ư\left(4\right)=\left\{...\right\}\\ c,ƯC\left(36,990\right)=Ư\left(18\right)=\left\{...\right\}\\ d,ƯC\left(54,36\right)=Ư\left(9\right)=\left\{...\right\}\\ e,ƯC\left(10,20,70\right)=Ư\left(10\right)=\left\{...\right\}\\ f,ƯC\left(25,55,75\right)=Ư\left(5\right)=\left\{...\right\}\\ g,ƯC\left(80,144\right)=Ư\left(16\right)=\left\{...\right\}\\ h,ƯC\left(63,2970\right)=Ư\left(9\right)=\left\{...\right\}\\ i,ƯC\left(65,125\right)=Ư\left(5\right)=\left\{...\right\}\\ j,ƯC\left(9,18,72\right)=Ư\left(9\right)=\left\{...\right\}\\ k,ƯC\left(24,36,60\right)=Ư\left(12\right)=\left\{...\right\}\\ l,ƯC\left(16,42,86\right)=Ư\left(2\right)=\left\{..\right\}\)
A/
12= 22.3
60=22.3.5
ƯCLN(12,60)=22.3.5=60
B/
24=23.3
88=23.11
ƯCLN(24,88)=23.3.11=264
C/
96=25.3
224= 25.7
ƯCLN(96,224)=25.3.7=672
D/
34=2.17
96=25.3
ƯCLN(34,96)=25.3.17=1632
Chúc bạn học tốt
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
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: \(300=2^2\cdot3\cdot5^2;280=2^3\cdot5\cdot7\)
=>\(ƯCLN\left(300;280\right)=2^2\cdot5=20\)