What is Primes?
Primes is a free casual game with math, number and puzzle elements that you can play online in your web browser on Gameziko. It needs no download, no install and no account. Primes is a game where there are two types of balls coming which have 7 or 9 printed on them.
How to play Primes
- Press "Play now" on the game screen. Primes loads inside the player; some games take up to 20 seconds and may show a short ad first.
- Hold release the mouse to swap bowls between blue and red balls
- Use the full-screen button at the bottom right of the player for a bigger view, and press Esc to leave full screen.
Game details
| Category | Casual |
|---|---|
| Tags | Math, Number, Puzzle |
| Controls | Mouse |
| Screen | Landscape (800 Ã 600) |
| Price | Free |
| Download or sign-up | Not needed |
| Distributed by | GameMonetize |
| Added to Gameziko | 30 September 2026 |
Description from the developer
Primes is a game where there are two types of balls coming which have 7 or 9 printed on them. They are to be collected in bowls filled with prime-numbered balls or non-prime numbered balls respectively which swap each other by mouse-click hold and release. Have fun :)
Primes: frequently asked questions
Is Primes free to play?
Yes. Primes is free to play on Gameziko, with no download and no account needed. Like most free web games, it is funded by ads, so it may show a short ad before or between rounds.
What are the controls in Primes?
The developer's instructions for Primes say: "Hold release the mouse to swap bowls between blue and red balls"
Can I play Primes on a phone or tablet?
Primes is an HTML5 game, so it opens in modern mobile browsers as well as on a computer. Its controls were designed mainly for a mouse, so a computer usually gives the smoothest experience.
What games are similar to Primes?
If you like Primes, try Square Fit, Math Game Multiple Choice and Basic Math. They are casual games with similar themes, and you can find more in the Casual category on Gameziko.
Good to know
Primes is made by an independent developer and delivered by GameMonetize, so Gameziko cannot change the game or recover lost progress. Any progress the game saves is kept in your browser on this device. If the game does not start, wait up to 20 seconds, allow ads for gameziko.com and try again, or report the game.