FALL 2026
Upcoming AMC Competitions
Registration for AMC8 and AMC 10/12 is open. We will host AMC 10/12B this year, on Friday, Nov 13th. Open to all students in the area.
WELCOME TO PRIME FACTOR
Prime Factor offers advanced STEM classes and programs for students who enjoy solving problems, asking questions, and exploring ideas beyond the standard school curriculum.
CURRENT EVENT
Grades 2-5: Thursday, Sept 3rd, 6pm
Grades 6-11: Tuesday, Sept 8th, 6pm
Learn about our programs! If you have students in younger and older grades, choose one of the sessions, and we will answer your questions for any age!
Seven Weeks of Focused Preparation Before the AMC 10
This intensive course is for students planning to compete at AMC 10 this November who want to improve their performance on problems in the #10-#20 difficulty range.
The class meets for seven Sundays before the exam, 3:00-5:30 PM. Students may enroll in the full course or attend individual sessions as drop-ins.
NEWS, EVENTS, UPCOMING PROGRAMS
Follow what students are learning, building, and exploring throughout the year
FALL 2026
Registration for AMC8 and AMC 10/12 is open. We will host AMC 10/12B this year, on Friday, Nov 13th. Open to all students in the area.
Fall 2026
We will host Noetic contest in November and Math Kangaroo in March. The registration will open soon!
FALL 2026
Seven weeks of focused preparation before the AMC 10. Meet on Sundays 3-5:30pm, in person. Start on September 20th.
OUR PROGRAMS
MATHEMATICAL CIRCLES
Advanced problem solving, mathematical reasoning, and challenging mathematics for motivated students.
COMPUTER SCIENCE
Advanced programming, algorithms, and computational thinking for future innovators and problem solvers.
CHESS
Strategy, planning, and confident play.
How Prime Factor is different
We believe students learn best when they're challenged, encouraged to ask questions, and surrounded by peers who share their curiosity. Our classes build confidence, creativity, and lasting problem-solving skills.
Students don't just solve problems — they explore, discuss, and understand.
From logical reasoning to AI and linguistics, students discover ideas beyond the school curriculum.
Every student is seen, supported, and challenged at the right level.
We bring abstract concepts to life with visual models, puzzles, games, and hands-on activities.
Learn from mathematicians, engineers, researchers, and experienced educators.
Our mathematics books have been published by the American Mathematical Society.
Testimonials
"I was a student at Prime Factor Math Circle for at least five years... The math classes helped me a ton in competitions because they focus on logic and proofs, not standard school math."
"The goal of math enrichment programs such as Prime Factor is to introduce students to mathematical ideas they may never see in school, even at the university level. My son has participated in Prime Factor for the past two years. Each week I look at his homework and think, 'I wish I could have solved problems like this when I was a child.'"
"I am currently pursuing a bachelor's degree at the University of Washington after attending Prime Factor's math and computer science programs from elementary through high school. One reason I stayed for so long was their unique approach. In math classes, the emphasis was on creativity and logical reasoning. I learned techniques never offered in school. Prime Factor gave me a distinctive set of skills I couldn't have accessed elsewhere."
"At Prime Factor, students engage with challenging topics such as combinatorics, number theory, graph theory, and mathematical induction. While not part of the standard school curriculum, these ideas are important in many science and technology careers. Prime Factor focuses on building logical thinking, creative problem-solving, and the analytical thinking that technical fields value."
We'll help you choose the right level - through a short placement test or personal guidance.
Community
Prime Factor is a nonprofit organization dedicated to making exceptional math, coding, and STEM education accessible to every curious student.