Prime Attack

소수와 약수를 게임으로 즐겨요

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Shoot number balls across grid paper: primes vanish, composites split. No ads, no purchases, no account. A game where you learn about prime numbers and factors naturally by clearing numbered balls. ■ How to Play · Choose a white ball from the bottom of the table and place it on the table. · Choose a position, aim, and shoot. · Balls with red outlines are prime numbers. Hit them, and they disappear. · Composite numbers are divided by the white ball's number if divisible. Otherwise, they grow by that amount. · Clear all the balls on the table to advance to the next level. ■ Train Your Number Sense · 221 might look like a prime number, but it's actually 13 × 17. · If you mistake it for a prime and hit it with the wrong shot, the ball gets bigger. The key is to figure out whether a number can be divided further or is already prime. · You'll also need precise aiming and the ability to anticipate how the next shot will play out. ■ What to Expect · As you progress, the number of balls increases and the numbers get larger. · Hit multiple balls in a row with a single shot to build combos and earn higher scores. · Stuck? Use a hint to explore the prime factorization of a white ball. You earn one additional hint each time you clear a stage. · Submit your score to the Game Center leaderboard (optional). ■ Free to Play · No ads. · No in-app purchases. · No account required. Play offline, too. An internet connection is only needed to submit scores to the leaderboard.

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The developer, JONGHOON KIM, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

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Information

Seller
JONGHOON KIM
Size
28.2 MB
Category
Board
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English
Age Rating
4+
Copyright
© 2026 kimmasoft.
  • Privacy Policy

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