## BdMO National Secondary 2007#13

samiul_samin
Posts: 1007
Joined: Sat Dec 09, 2017 1:32 pm

### BdMO National Secondary 2007#13

Prove that if $a$ and $b$ are two integers,then $a\times b=LCM(a,b)\times GCD(a,b)$ .

samiul_samin
Posts: 1007
Joined: Sat Dec 09, 2017 1:32 pm

### Re: BdMO National Secondary 2007#13

This is a classical problem.You can get the proof here.