cmmdc = (a,b); cmmmc = [a.b]
128=2^7; 320=2^6*5 => (128,320)=2^6=64 si [128,320]=2^7*5=128*5=640
350=2*5^2*7; 245=5*7^2 => (350,245)=5*7=35 si [350,245]=2*5^2*7^2=2450
8400=2^4*3*5^2*7; 1100=2^2*5^2*11 => (8400,1100)=2^2*5^2 si [8400,1100]=2^4*3*5^2*7*11=92400
SEMNUL ^ INSEAMNA LA PUTEREA
ex. 2^5 = 2 la puterea 5
