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Calculati c.m.m.m.c al nr 21,30,70,42

Răspuns :

[tex]21=3*7 30=2*3*5 70=2*5*7 42=2*3*7 cmmmc=2*3*5*7=210[/tex]
Cocirmariadenis
21 = 3 × 7
30 = 2 × 3 × 5
70 = 2 × 5 × 7 
42 = 2 × 3 × 7
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cmmmc al numerelor ( 21, 30, 70, 42) = 2 × 3 × 5 × 7 = 210