def leastCommonMuliply(m:int, n:int) ->int: 
    """
    Return a least common multiply of a given two numbers
    param: int, int
    return LCM
    """      
    large = max(m,n)
    small = min(m,n)
    # if large is divisible by small returns large       
    if large % small == 0: return large        
    lcm = large
    while lcm % small != 0:
            lcm += large
    return lcm