Hey everybody I'm fairly new to C++ and have been understanding until Ive hit this rock. Im trying to figure out how to indicate whether or not a first command line argument interpreted as an integer is a multiple of the sum of its own digits. I understand that logic as if you type 20 = 2(2+0) is a yes but i feel hopeless trying to set it up. Any tips, hints or help i would love so much. Thanks anyone for a comment in advance.