3587 Descartes

3587 Descartes is a type of math problem. Descartes is the name of a famous mathematician, and he invented a way to solve math problems called Descartes' Rule of Signs. The problem 3,587 Descartes means that you have to take 3,587 numbers and figure out how many of them are positive (greater than zero) and how many are negative (less than zero). To answer this, you will use Descartes' Rule of Signs and look at how the positive and negative numbers are arranged. You can count how many positive and negative numbers there are to figure out the answer.