Factor Forge
A grid of numbers and one target — devour only the cells that are factors (or multiples) of it, and watch the columns collapse as you clear.
How to play
Each target sets the rule: in factor mode you may only eat cells that divide the target, in multiple mode only cells that are multiples of it. A valid eat removes the cell and drops the column above it under gravity; an invalid eat breaks your combo and costs you. Clear every valid cell for the target to advance to the next one. You're racing a round timer, so quick, correct eats and combos score best.
- Eat only factors of the target (or only multiples, depending on the mode).
- Clearing a cell drops the column above it into the gap.
- Wrong eats are penalized and reset your combo.
- Clear all valid cells to move to the next target before time runs out.
Game modes
- Daily: the same board for everyone, in Easy, Medium, or Hard.
- Practice: fresh random boards at your chosen difficulty.
Controls
- Desktop: click a cell to eat it.
- Phone & tablet: tap a cell to eat it.
Tips & strategy
- Check 1 and the target itself first — they're always factors, easy combo starters.
- For multiples, scan for the target's small multiples before the big ones hiding up top.
- Keep a streak alive; combos multiply your score far more than rushing into a wrong eat.
What you'll learn
Factor Forge turns factor and multiple recognition into a fast, gravity-driven clearing puzzle, building the multiplicative number sense behind fractions and algebra.
- Skills: factors and multiples, divisibility, times tables, prime numbers
- Best for: roughly grades 4–7 (ages 9–13)
- For parents & teachers: rapid factor practice that pays off across the curriculum.
About Factor Forge
Factor Forge is an original, free browser game that turns factor and multiple recognition into a fast, gravity-driven clearing puzzle. Play instantly, no account needed.
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