Join us for open Math Circle Lecture Series, organized by Prime Factor Math Circle.
This season, join us on a journey through the world of mathematics with our Math Circle Lecture Series for school-age students. At each lecture, we’ll explore deep and surprising ideas that go far beyond standard school curriculum, presented in a fun, friendly, and engaging way.
In addition to the lectures, join us for our Math Quests — story-driven adventures where students solve puzzles, crack codes, and follow clues using the power of math. Each quest has its own theme and challenges, from magical mysteries in One Day in Hogwarts to brain-bending puzzles in One Day in Logic Land.
No matter where you're starting from, you're welcome to come along as we uncover patterns, try out interesting problems, and see just how fun and creative math can be.
These events are free to attend.
Here are the events we planned for this season. Click on a topic to learn more and register!
"One Day in Logic Land." A Family Math Quest Grades: 2-3 in the fall of 2025. Tuesday, August 26th. A family adventure for students and their parents.
The quests start between 5:30 and 7:00 PM. In-person, at Prime Factor, 2707 152nd Ave NE, Suite 6L, Redmond.
"One Day in Hogwarts." Math Quest Grades: 4-6 in the fall of 2025. Thursday, August 28th. The quests start between 5:30 and 7:00 PM. In-person, at Prime Factor, 2707 152nd Ave NE, Suite 6L, Redmond.
"Mathematics and Music." Grades: 5-10. Thursday, September 4th, 6:00-7:00 PM Pacific time. Online. Repeated by popular demand.
Wandering Words: a Lecture in Linguistics Grades: 8-10. Tuesday, September 9th, 6:45-7:45 PM Pacific time. Online
“Mathematical Induction with Formulas – Crunching Numbers, Proving Patterns” Grades 8-11: Date: TBD
"Logic, Patterns, Problems 1" Open Math Circle Sessions for grades 2-3. Dates: TBD
"Logic, Patterns, Problems 2." Open Math Circle Sessions for grades 3-4. Dates: TBD
Our past lectures.
“Dividing Shapes: Mathematical Approach to Equal Parts” Grades: 5-8. Thursday, August 21st, 6:00-7:00 PM Pacific time. Online
"Fair Sharing of a Treasure." Grades: 5-8. Thursday, July 10th, 6:00-7:00 PM Pacific time. Online
"Mathematics and Music." Grades: 5-10. Tuesday, July 15th, 6:00-7:00 PM Pacific time. Online
“Mathematical Induction – So Simple and So Powerful.” Grades: 6-9. Tuesday, July 22nd, 6:00-7:00 PM Pacific time. Online
"Zero Knowledge Proofs" Grades: 7-11. Tuesday, July 29th, 6:00-7:00 PM Pacific time. Online
Do you have preferred dates or topic ideas for future lectures? Want to stay in the loop when new sessions are announced? Fill out this quick feedback form —we’d love to hear from you!
Prime Factor offers enriching math and computer science programs for curious and motivated students. Through challenging problems, creative exploration, and focus on reasoning, we help students develop strong thinking skills and a genuine love for mathematical ideas.