There are infinitely many prime numbers. Prime numbers thin out as we go higher up. Computing a billion prime numbers at a time seems like a task for desktop computers with lots of processing power. Let us see how raspberry pis that range in price from $5 to $30 do this. This gives us an opportunity to appreciate the power of a tiny computer and maybe give us confidence to use them for everyday tasks. Let us explore a way to distribute this problem and see what factors to consider on this particular hardware. Let us also look at thermal throttling on these pis and which models are affected and when.