263. Ugly Number

def isUgly(num):
    """
    :type num: int
    :rtype: bool
    """
    if num>0:
        if num in [1,2,3,5]:
            return True
        else:
            res =True
            for i in [2,3,5]:
                if num%i==0:
                    res = isUgly(num/i)
                    break
                else:
                    if i==5:
                        res = False
    else:
        res = False
    return res