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Prime Time: Is it Prime?
Prime or not? Build a streak
Ceri-anne Jackson · Games
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Prime Time: Is it Prime? is an iOS game by Ceri-anne Jackson, released on Oct 27, 2026. The current version, 1.1, came out 4 days ago. It has no ratings yet. It is free to download and has no in-app purchases.
App info
- Developer
- Ceri-anne Jackson
- Category
- Games, Education, Puzzle
- Released
- Oct 27, 2026
- Version
- 1.1 (Nov 7, 2026)
- Price
- Free
- Size
- 1.3 MB
- Requires
- iOS 17.0
- Age rating
- 4+
- Languages
- English, French, German, Italian, Portuguese, Spanish, Welsh
In-app purchases
noneCurrent prices, App Store US.
About Prime Time: Is it Prime?
A number appears. Is it prime, or not? Prime Time is a quick, no-pressure number game: tap Prime or Not Prime, and find out instantly whether you were right — plus an interesting fact about that number, every single time, whether you got it or not. No timer. No lives. Just you, a number, and a streak to protect. One wrong answer ends your run, so every tap matters. How many can you get in a row before you slip up? HOW TO PLAY - A number appears on screen - Tap Prime or Not Prime - See if you were right, and learn something new about that number - Keep going — numbers get bigger and trickier the longer your streak holds - One mistake ends the run. Your best streak is saved, so you always have something to beat. WHY YOU'LL LIKE IT - Genuinely interesting facts on every number — not just "is it prime," but perfect squares, triangular numbers, Fibonacci numbers, happy numbers, and more - A…
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