I have the feeling you don't know what you're asking for. I'm not poking fun; I've been in the same situation of feeling like there's a better solution but not even really knowing how to ask for it.

Ultimately, you have a list of numbers. You have to check each one. There's no way around dealing with a list, because that's your input. You can avoid dealing with additional lists, and that's what Shonky and Tony have suggested. There are potentially other ways to decorate it, but they're all going to be basically the same.