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Racing
Keep Prime Numbers
Remove all the blocks to make the composite number going out but keep the prime number.
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About Keep Prime Numbers
Remove all the blocks to make the composite number going out but keep the prime number. Click or tap the unused block to drop the composite numbers. Engines are running in Keep Prime Numbers — press Play, line up on the grid, and chase the fastest lap. It leans fully into racing, so if that's your thing, it delivers. It's tuned to load fast and play smoothly whether you've got five minutes or an hour.
If you want to do well, keep this in mind: Drift only when the road actually curves. Drifting on straights kills your speed. Tap the brake to settle the car before a jump or crest so you land straight.
Ready when you are: Keep Prime Numbers runs right here on Glaze Games, free and unblocked, straight in your browser with nothing to install.
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How to play Keep Prime Numbers
Engines are running in Keep Prime Numbers — press Play, line up on the grid, and chase the fastest lap.
- 1Hit the Play button above and Keep Prime Numbers opens right inside the player on this page.
- 2Give it a few seconds to load; most games are small and are ready almost immediately on a typical connection.
- 3Follow the in-game tutorial if it appears; most racing games introduce the controls in the first level.
- 4Give the game window a click first so it registers your keys and taps, then dive in.
Frequently asked questions
Is Keep Prime Numbers free to play?
Yes — Keep Prime Numbers is free, with no hidden cost. You don't need to pay, register, or install anything; the full game loads right in your browser.
Do I need to download anything to play Keep Prime Numbers?
No download needed. Keep Prime Numbers plays instantly in any modern browser; there's no installer, no plugin, and no waiting beyond a quick load.
Can I play Keep Prime Numbers on my phone?
Yes, but Keep Prime Numbers is best played in landscape. Rotate your phone to landscape mode, or play on a tablet or laptop for the most comfortable experience.
Is Keep Prime Numbers safe to play at school?
Keep Prime Numbers loads from a reputable publisher and runs through Glaze Games' filtered catalog, so it's a safer alternative to random "unblocked games" sites. Whether it works depends on your school's network — if standard game domains are open, Keep Prime Numbers will load.
Where can I find more games like Keep Prime Numbers?
Once you've finished Keep Prime Numbers, scroll down to the "More games like this" section — we surface similar titles from the same category. You can also browse the full catalog by genre from the home page.
Player reviews for Keep Prime Numbers
Community verdict
11 reviewsPlayer reviews
Honestly didn't expect to get this hooked on Keep Prime Numbers — one more round turned into an hour.nightowl
Keep Prime Numbers kept stuttering on my older phone. Might be better on desktop.
Honestly didn't expect to get this hooked on Keep Prime Numbers — one more round turned into an hour.
Enjoyable and easy to pick up. Keep Prime Numbers lost a star for the odd ad.
Fun idea — wish the controls in Keep Prime Numbers were a touch more responsive.
Keep Prime Numbers is nice and smooth; a leaderboard would make it even better.
Keep Prime Numbers is genuinely one of my favorite racing games on here right now.
Controls in Keep Prime Numbers feel tight and it just plays great. 10/10.
Keep Prime Numbers is stupidly addictive in the best way.
Whole friend group is on Keep Prime Numbers now. Best racing find this week.
Keep Prime Numbers runs great on my phone and my laptop. Love it.
No lag, no install — Keep Prime Numbers is exactly what I wanted.
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