What we're going to do in this video are some real quick tests to see if these three random numbers are divisible by any of these numbers here now I'm not going to focus a lot on the "why" of why they're divisible but rather just to give you a sense of how do you actually test to see this is divisible by two or five or nine, or ten. so let's get started so to test whether any of these are really divisible by two, you really just gotta look at the ones place and see if the ones place is divisible by 2 and right over here, it is divisible by two, so this thing is gonna be divisible by two