Răspuns:
D
60
={1,2,3,4,5,6,10,12,20,30,60}
\bf D_{72}= \{\red{1,2,3,4,6},8,9,\red{12} ,18,24,36,72 \}D
72
={1,2,3,4,6,8,9,12 ,18,24,36,72}
\bf \: Divizorii \: comuni \: \red{D_{60} \cap \: D_{72}= \{1,2,3,4,6,12 \}}DivizoriicomuniD
60
∩D
72
={1,2,3,4,6,12}
60 = 2² × 3 × 5
72 = 2³ × 3²
c.m.m.d.c (60; 72) = 2² × 3
c.m.m.d.c (60; 72) = 4 × 3
c.m.m.d.c (60; 72) = 12