A few years ago I created a game that helps the players to learn prime decomposition. This Link (click here) shows my two children and two of their friends playing the game over 10 years ago. This Link (click here) shows one move of the game.

Directions:

  1. Click on generate number button to get your number
  2. If you believe the number is prime...
    1. click Prime button
    2. Press check answer
  3. If you believe the number is not prime...
    1. press all the factors of the generated number
    2. Press check answer
    3. Press reset button if you made a mistake and want to start over
  4. Press generate number again to get a new number and play again!
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Let's play Primechisi!!!

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Prime