Web portal for PrimeQK Party
Web portal for PrimeQK Party
PrimeQK & PrimeQK Party

What's PrimeQK?
PrimeQK is a unique card game using “prime numbers”.
You use regular playing cards to make numbers and strategically play cards, but only “prime numbers” can be played! This special rule creates fun and new discoveries by using your brain.
The rules are simple, so there is no need to worry even if you are not good at mathematics. As you play, you will discover the fun of prime numbers and feel a little bit of the charm of mathematics.
We hope you will try it as a chance to “get to know” prime numbers!

What's the
Prime QK Party
PrimeQK Party is an event to share the fun of PrimeQK with everyone. Anyone is welcome to join, regardless of age, experience, or mathematical ability.
The rules of PrimeQK will be explained from the very beginning, so even beginners can enjoy the game at ease. You are welcome to join in the fun with friends and family, or to participate alone and interact with new friends!
Not only enjoying the thrill of the game, but also discussing about prime numbers and learning and discovering through the game are the unique attractions of this meeting.
Why don't you come and spend a moment with us to become friends with prime numbers and enjoy the depth of PrimeQK and the fun of mathematics?

For those who want to hold a PrimeQK Party
PrimeQK Parties can be held freely in the area of your choice. The meetings are still held by volunteers in various parts of Japan, and the method and frequency of the meetings vary from region to region.
If you would like to hold a PrimeQK Party in a new area and would like your information to be listed on this website, please feel free to contact us by filling out the contact form.

Prime QK party
in Sapporo
(in Hokkaido, Japan)
PrimeQK Party in Sapporo has been active on an irregular basis since 2017.
In principle, no prior application is required and the participation fee is “any prime number of yen from 2 yen to 1,213 yen” to provide an opportunity to play prime number millionaires, so please feel free to join us if you are interested. Those who live outside of Sapporo and elementary and junior high school students are also welcome to participate!
Information about the event will be posted mainly on Facebook and X (the organizer's account).

Prime QK Party
in Kanto
(in Tokyo and vicinity, Japan)
Let's play Prime Number Dafugou in Kanto is being held once a month.
The date and time will be announced on X, and details of the venue will be sent to those who have applied. The content of the event, application method, participation fee, etc. change from time to time, so please check the information on X before participating.
Contact
Please contact us for inquiries about Prime QK or Prime QK parties. The Association for the Promotion of Prime QK will check and reply to your inquiry.
Email address:
You can also contact us by DM on X (formerly twitter).