a) 36 = 2².3²
60 = 2².3.5
72 = 2³.3²
ƯCLN(36; 60; 72) = 2².3 = 12
b) 28 = 2².7
39 = 3.13
35 = 5.7
ƯCLN(28; 39; 35) = 1
c) 45 = 3².5
204 = 2².3.17
126 = 2.3².7
ƯCLN(45; 204; 126) = 3
d) 125 = 5³
100 = 2².5²
300 = 2².3.5²
ƯCLN(125; 100; 300) = 5² = 25
a,ƯCLN (36;60;72)=12
b,ƯCLN (28;39;35)=1
c,ƯCLN (45;204;126)=3
d,ƯCLN (125.100;300)=25