Question

Sa se calculeze c.m.m.m.c.si c.m.m.d.c. ptr. 120, 100 si 280 ; 42, 105, si 147

Answer 1

120=2*3*2*2*5

100=2*2*5*5

280=2*5*7*2*2

Cmmdc=20

Cmmmc=2*2*2*5*5*7*3=4200

42=2*3*7

105=5*3*7

147=3*3*13

Cmmdc=3

Cmmmc=2*3*7*5*3*13=630*13=8190