Primorize

Math

Prime factorization practice doesn't have to be boring worksheets. Primorize turns it into a game — choose from Life mode, Time Attack, or Practice mode. Get an explanation whenever you make a mistake, making it great for exam prep too.

Try Primorize →

This tool is completely free to use directly in your browser.
No registration or installation required.

When to use it

  • When you want to practice prime factorization until you're fast at it

  • When you're preparing for a junior high math exam

  • When you want a game-like way to practice math

Key features

Life mode

Solve as many as you can before running out of lives, 3 difficulty levels

Time Attack mode

Race against the clock

Practice mode

No time limit or lives, learn at your own pace

Automatic explanations

Explanations shown when you make a mistake

Personal score tracking

Track your own best results

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