Răspuns :
a*b=294=6*7*7
daca (a,b)=7, atunci a=7, b=6*7=42 sau a=42, b=7
daca (a,b)=7, atunci a=7, b=6*7=42 sau a=42, b=7
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
......
7(x+y)=294
x+y=42
x=1 y=41 => a=7 b=287
x=41 y=1 => a=287 b=7
......