Răspunsuri

2014-11-10T22:12:28+02:00
84:2=42:2=21:3=7:7=1 84=2 la puterea 2•3•7; 140:2=70:7=10:(2•5)=1; 140=2 la puterea 2•7•5; (84,140)=2 la puterea2 •7=28