Prime Factor Math Circle (Seattle)

The 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 contests and competitions.

Prime Factor operates math circles of several different levels for students of grades 3 and up.

You can learn more at our site:

Website URL: 


6131 120th Pl NE
Kirkland, WA 98033
United States
47° 39' 42.5268" N, 122° 10' 45.4224" W