UCLN(12;52)=4
UCLN(36;990)=18
UCLN(54;36)=18
UCLN(12;52)=4
UCLN(36;990)=18
UCLN(54;36)=18
UCLN(10;20;70)=10
UCLN(25;55;75)=5
UCLN(63;2970)=9
UCLN(24;36;60)=6
UCLN(65;125)=5
UCLN(9;18;72)=9
12 = 22 . 3
52 = 22 . 13
ƯCLN(12,52) = 22 = 4
ƯC(12,52) = Ư(4) = 1,2,4
b) 36 = 22 . 32
990 = 2 . 5 . 32 . 11
ƯCLN(36,990) = 2 . 32 = 18
ƯC(36,990) = Ư(18) = 1,2,3,6,9,18
c) 10 = 2 . 5
20 = 22 . 5
70 = 7 . 2 . 5
ƯCLN(10,20,70) = 2 . 5 = 10
ƯC(10,20,70) = Ư(10) = 1,2,5,10
d) 54 = 2 . 33
36 = 22 . 32
ƯCLN(54,36) = 2 . 32 = 18
ƯC(54,36) = Ư(18) = 1,2,3,6,9,18
e) 25 = 52
55 = 11.5
75 = 52 . 3
ƯCLN(25,55,75) = 5
ƯC(25,55,75) = Ư(5) = 1,5
UCLN(12;52)=4
UCLN(36;990)=18
UCLN(54;36)=18
UCLN(10;20;70)=10
UCLN(25;55;75)=5
UCLN(63;2970)=9
UCLN(24;36;60)=6
UCLN(65;125)=5
UCLN(9;18;72)=9