let R () = let t = stdin.ReadLine().Split()
                   |> Array.map int64
           t.[0], t.[1]
        
let rec gcd a b =  
    if a < b then 
        gcd b a
    else
        match b with
        | 0L -> a
        | b  -> gcd b (a % b)
    
    
let A, B = R ()

let G = 
    let g = gcd A B
    let a = A / g
    let b = B / g
    (gcd (a + b) g) * g

G |> printfn "%i"