Middle School Madness - April 22, 2019
You are given the first 100 prime numbers greater than zero. If you multiplied these 100 prime numbers together, what would be the units (ones) digit of the product of these 100 prime numbers?
Immediately after your correct answer is submitted, your name will be posted here.
NOTE: Anyone can answer Middle School Madness questions, but only participants 15 years of age or younger will be awarded points and displayed in the rankings.
Need Scratch Paper?
We encourage you to use Casio's new free online math software, ClassPad.net, as your digital scratch paper while solving the problems on our site!