12 = 2² × 3
18 = 2 × 3²
__________
cmmmc al numerelor ( 12; 18 ) = 2² × 3³ = 36
48 = 2⁴ x 3
60 = 2² x 3 x 5
____________
cmmmc al numerelor ( 48; 60 ) = 2⁴ x 3 x 5 = 240
75 = 3 x 5²
120 = 2³ x 3 x 5
_____________
cmmmc al numerelor ( 75; 120) = 2³ x 3 x 5² = 600
24 si 40
24 = 2³ x 3
40 = 2³ x 5
__________
cmmdc ( 24 si 40 ) = 2³ = 8
cmmmc ( 24 si 40 ) = 2³ x 3 x 5 = 120
45 si 75
45 = 3² x 5
75 = 3 x 5²
__________
cmmdc ( 45 si 75 ) = 3 x 5 = 15
cmmmc ( 45 si 75 ) = 3² x 5² = 225
108 si 180
108 = 2² x 3³
180 = 2² x 3² x 5
______________
cmmdc ( 108; 180 ) = 2² x 3² = 36
cmmmc ( 108; 180 ) = 2² x 3³ x 5 = 540
108 l 2 180 l 2
54 l 2 90 l 2
27 l 3 45 l 3
9 l 3 15 l 3
3 l 3 5 l 5
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