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Falling Factors


Instructions

Choose a number range and press Play. Numbers will begin falling into the well.


Select a falling number and enter two factors that multiply to make it. For example, 36 can be split into 4 × 9. The number will split into two bulbs, and you'll keep breaking down any composite factors.


Keep splitting until only prime numbers remain. Prime bulbs pop and clear automatically.


Clear 10 numbers to complete a round. Each new round gets faster.


Watch for hammer bulbs. Drag a hammer number onto any column to smash every bulb beneath it.


Don't let the stack reach the top. Clear numbers before they land for double points, and build streaks of correct answers to multiply your score.

Introduction

Falling Factors is a free math game where students split falling numbers into factor pairs until only prime numbers remain. Inspired by the fast pace of falling-block games, students practice multiplication facts, factor pairs, prime and composite numbers, and prime factorization while trying to keep the stack from reaching the top. Choose numbers up to 100, 250, or 500 and see how far you can go.

WHY THIS GAME MATTERS

Why students love this game:

  • It plays like a fast-paced falling-block game

  • Numbers build toward the top, creating real urgency

  • Correct answers create immediate visual feedback

  • Hammer bulbs provide satisfying comeback moments

  • Streaks and score multipliers reward continued accuracy

  • The leaderboard gives students a reason to play again

Skills students build:

  • Multiplication and division fact fluency

  • Finding factor pairs

  • Recognizing prime and composite numbers

  • Prime factorization

  • Divisibility and number sense

  • Strategic thinking

  • Choosing efficient factor pairs

Great For

This free math game is especially useful for:

  • Middle school math

  • Grades 6–8

  • Grades 4–5 with the numbers-up-to-100 setting

  • Factors and multiples units

  • Prime and composite number practice

  • Prime factorization

  • Multiplication fact fluency

  • Math warm-ups

  • Math stations

  • Early finishers

  • Review activities

  • Independent practice

  • Sub days

Accessibility Matters

Falling Factors is designed so students can play independently using the input method that works best for them.


Accessibility features include:

  • Keyboard-only play

  • Mouse support

  • Touch support

  • Screen reader support

  • Browser-based play without installation

  • Chromebook compatibility

  • Laptop compatibility

  • Tablet compatibility

KEEP THE LEARNING GOING

Try more free math games from When Math Happens:

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