Math Circle Logo

Prime Factor Math Circle


Welcome to Prime Factor Math Circle (Seattle, Eastside).

Prime Factor Math Circle is an extracurricular math program for elementary and middle-school students. In our circle, students develop creative thinking and problem-solving skills, as well as learn the principles of logic and math reasoning. Our curriculum includes interesting and educational math topics that often lie beyond the school program.

Prime Factor Math Circle students meet weekly in a small-class setting. The circle sessions consist of an hour and a half of interactive teaching, mathematical discussion and problem-solving. The problems and discussion topics are selected to stimulate the students' creative abilities and to develop their problem exploration skills and mathematical reasoning. Some of the class time (especially in circles with younger students) is devoted to mathematical games and competitions.

Our new 2014-15 school year schedule for math and programming will be available here in August. Sign up for our newsletter to receive updates.

2013-2014 Prime Factor Math Circles

Elementary School Circle 1 (grades 3-4):

In this circle, we will spend a lot of time working on problems and getting to know math concepts and ideas through hands-on experience.

Elementary School Circle 2 (grades 4-5):

For students who like to ask questions and search for answers. Math is used as a tool for developing logical and problem-solving abilities.

Elementary School Circle 3 (grade 5):

This circle is devoted to more advanced math concepts and more challenging problems than Circle 2. It is about both hands-on problem solving and building a solid foundation for our middle school program. While working on a variety of math enrichment topics and problem solving techniques, the students will be exposed to all elements of mathematical inquiry: creative exploration, rigorous proof, and clear explanation.

Math Circle First Year (grades 6-7):

For students who want to know more about the world of extracurricular mathematics. Potential students should be ready to explore, learn, and work on challenging problems. This class is open to Elementary School Circle graduates and to new students.

Math Circle Second Year (grades 6-8):

For students of grades 6-8 who are familiar with the First Year topics or are ready to put in extra work of catching up with our First Year program.

Math Circle Third Year (grades 7-9):

For students of grades 7-9 who are familiar with the Second Year topics.

Math Circle Fourth Year (grades 8-10):

This circle is for students to are familiar with the Third Year topics.

For detailed descriptions of these classes visit the classes page.
For the 2013–2014 schedule visit the schedule page.
To register, visit the registration page.
If you want to look at a sample of math circle problems, check our Archive pages.

To learn more about our math circle, consult the Frequently Asked Questions and About Math Circles pages.

Prime Factor Math Circle is a nonprofit organization. The goal of Prime Factor is to engage school children in the world of extracurricular mathematics with the purpose of developing their math knowledge, problem solving skills and creative thinking abilities. We have a lot of plans and ideas how to grow and expand. We welcome donations and we will put them to a good use.