Question

Daca a*b=294  si (a,b)=7,atunci aflati numerele naturale a si b.

Answer 1

a*b=294=6*7*7
daca (a,b)=7, atunci a=7, b=6*7=42 sau a=42, b=7

Answer 2

a=7x   b=7y (din (a;b) =7
7(x+y)=294
x+y=42 
x=1  y=41 => a=7 b=287
x=41 y=1 => a=287 b=7
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